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  3. I'm curious to know what people think about Anthropic's claim that Claude found 500 high-severity vulnerabilities in open-source packages.

I'm curious to know what people think about Anthropic's claim that Claude found 500 high-severity vulnerabilities in open-source packages.

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  • dangoodin@infosec.exchangeD dangoodin@infosec.exchange

    I'm curious to know what people think about Anthropic's claim that Claude found 500 high-severity vulnerabilities in open-source packages. Has anyone confirmed that these vulns were indeed high-severity and hadn't been discovered before? Is this development as big a deal as Anthropic says? Any other critiques?

    0-Days \ red.anthropic.com

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    hotarubiko@infosec.exchange
    wrote last edited by
    #2

    @dangoodin 500 is such a nice, round number. Very much like a number a human would pick at random. That alone makes it rather suspect.

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    • dangoodin@infosec.exchangeD dangoodin@infosec.exchange

      I'm curious to know what people think about Anthropic's claim that Claude found 500 high-severity vulnerabilities in open-source packages. Has anyone confirmed that these vulns were indeed high-severity and hadn't been discovered before? Is this development as big a deal as Anthropic says? Any other critiques?

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      gossithedog@cyberplace.socialG This user is from outside of this forum
      gossithedog@cyberplace.socialG This user is from outside of this forum
      gossithedog@cyberplace.social
      wrote last edited by
      #3

      @dangoodin it would help if they included things like CVE numbers, Github pull requests to fix the issues etc. There's some specific examples in the post.. but they include no information to actually find the vulns and/or validate what they're claiming.

      fritzadalis@infosec.exchangeF 1 Reply Last reply
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      • dangoodin@infosec.exchangeD dangoodin@infosec.exchange

        I'm curious to know what people think about Anthropic's claim that Claude found 500 high-severity vulnerabilities in open-source packages. Has anyone confirmed that these vulns were indeed high-severity and hadn't been discovered before? Is this development as big a deal as Anthropic says? Any other critiques?

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        rootwyrm@weird.autosR This user is from outside of this forum
        rootwyrm@weird.autosR This user is from outside of this forum
        rootwyrm@weird.autos
        wrote last edited by
        #4

        @dangoodin zero question it's pure fantasy bullshit. They refuse to show their work, as usual. All they've got is a middling CGIF vulnerability that isn't, and claiming credit for "finding" a vulnerability in GhostScript because "hey this commit did a thing so they must have had a vulnerability!"

        rootwyrm@weird.autosR leberschnitzel@existiert.chL 2 Replies Last reply
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        • rootwyrm@weird.autosR rootwyrm@weird.autos

          @dangoodin zero question it's pure fantasy bullshit. They refuse to show their work, as usual. All they've got is a middling CGIF vulnerability that isn't, and claiming credit for "finding" a vulnerability in GhostScript because "hey this commit did a thing so they must have had a vulnerability!"

          rootwyrm@weird.autosR This user is from outside of this forum
          rootwyrm@weird.autosR This user is from outside of this forum
          rootwyrm@weird.autos
          wrote last edited by
          #5

          @dangoodin if "this commit changed a thing to fix a bug" is the metric, well fuck, I've found over 100,000 'vulnerabilities' in the past year.

          dangoodin@infosec.exchangeD 1 Reply Last reply
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          • gossithedog@cyberplace.socialG gossithedog@cyberplace.social

            @dangoodin it would help if they included things like CVE numbers, Github pull requests to fix the issues etc. There's some specific examples in the post.. but they include no information to actually find the vulns and/or validate what they're claiming.

            fritzadalis@infosec.exchangeF This user is from outside of this forum
            fritzadalis@infosec.exchangeF This user is from outside of this forum
            fritzadalis@infosec.exchange
            wrote last edited by
            #6

            @GossiTheDog @dangoodin
            This looks like the first one.

            Link Preview Image
            ghostpdl.git - Ghostscript and GhostPDL

            favicon

            (cgit.ghostscript.com)

            fritzadalis@infosec.exchangeF 1 Reply Last reply
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            • fritzadalis@infosec.exchangeF fritzadalis@infosec.exchange

              @GossiTheDog @dangoodin
              This looks like the first one.

              Link Preview Image
              ghostpdl.git - Ghostscript and GhostPDL

              favicon

              (cgit.ghostscript.com)

              fritzadalis@infosec.exchangeF This user is from outside of this forum
              fritzadalis@infosec.exchangeF This user is from outside of this forum
              fritzadalis@infosec.exchange
              wrote last edited by
              #7

              @GossiTheDog @dangoodin
              Maybe #2
              https://github.com/OpenSC/OpenSC/commit/9ab1daf21029dd18f8828d684ee6151d9238edab

              fritzadalis@infosec.exchangeF 1 Reply Last reply
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              • dangoodin@infosec.exchangeD dangoodin@infosec.exchange

                I'm curious to know what people think about Anthropic's claim that Claude found 500 high-severity vulnerabilities in open-source packages. Has anyone confirmed that these vulns were indeed high-severity and hadn't been discovered before? Is this development as big a deal as Anthropic says? Any other critiques?

                0-Days \ red.anthropic.com

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                sharlatan@mastodon.socialS This user is from outside of this forum
                sharlatan@mastodon.socialS This user is from outside of this forum
                sharlatan@mastodon.social
                wrote last edited by
                #8

                @dangoodin Daniel Steinberg mentioned on FOSDEM 2026 - full covered test suite is the wall none of "AI" could climb. I guess npm may provide even more vulnerable packages 987654321 🙂

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                • fritzadalis@infosec.exchangeF fritzadalis@infosec.exchange

                  @GossiTheDog @dangoodin
                  Maybe #2
                  https://github.com/OpenSC/OpenSC/commit/9ab1daf21029dd18f8828d684ee6151d9238edab

                  fritzadalis@infosec.exchangeF This user is from outside of this forum
                  fritzadalis@infosec.exchangeF This user is from outside of this forum
                  fritzadalis@infosec.exchange
                  wrote last edited by
                  #9

                  @GossiTheDog @dangoodin
                  For #3 there are a bunch of recent commits to the lzw code.

                  These really seem like bugs that existing scanners should have found, especially strcat use (#2).

                  bertdriehuis@infosec.exchangeB 1 Reply Last reply
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                  • dangoodin@infosec.exchangeD dangoodin@infosec.exchange

                    I'm curious to know what people think about Anthropic's claim that Claude found 500 high-severity vulnerabilities in open-source packages. Has anyone confirmed that these vulns were indeed high-severity and hadn't been discovered before? Is this development as big a deal as Anthropic says? Any other critiques?

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                    M This user is from outside of this forum
                    mweiss@infosec.exchange
                    wrote last edited by
                    #10

                    @dangoodin I said it elsewhere, but what's missing in my view is the false positive rate. Ok, it found 500. Did it flag 500? 5,000? 5,000,000? That's an important data point.

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                    • rootwyrm@weird.autosR rootwyrm@weird.autos

                      @dangoodin if "this commit changed a thing to fix a bug" is the metric, well fuck, I've found over 100,000 'vulnerabilities' in the past year.

                      dangoodin@infosec.exchangeD This user is from outside of this forum
                      dangoodin@infosec.exchangeD This user is from outside of this forum
                      dangoodin@infosec.exchange
                      wrote last edited by
                      #11

                      @rootwyrm

                      That's not what Antropic said. Antropic said the vulns were high-severity.

                      rootwyrm@weird.autosR 1 Reply Last reply
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                      • dangoodin@infosec.exchangeD dangoodin@infosec.exchange

                        @rootwyrm

                        That's not what Antropic said. Antropic said the vulns were high-severity.

                        rootwyrm@weird.autosR This user is from outside of this forum
                        rootwyrm@weird.autosR This user is from outside of this forum
                        rootwyrm@weird.autos
                        wrote last edited by
                        #12

                        @dangoodin that is EXACTLY what Anthropic said. LITERALLY it is the FIRST "vulnerability" they bogusly claim to have found.

                        > Neither of these methods yielded any significant findings. Eventually, however, Claude took a different approach: reading the Git commit history. Claude quickly found a security-relevant commit, and commented:

                        dangoodin@infosec.exchangeD rootwyrm@weird.autosR 2 Replies Last reply
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                        • dangoodin@infosec.exchangeD dangoodin@infosec.exchange

                          I'm curious to know what people think about Anthropic's claim that Claude found 500 high-severity vulnerabilities in open-source packages. Has anyone confirmed that these vulns were indeed high-severity and hadn't been discovered before? Is this development as big a deal as Anthropic says? Any other critiques?

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                          dangoodin@infosec.exchangeD This user is from outside of this forum
                          dangoodin@infosec.exchangeD This user is from outside of this forum
                          dangoodin@infosec.exchange
                          wrote last edited by
                          #13

                          Thanks for all the responses. So far, projects I understand to have received reports include: Ghostscript, OpenSC, lzw, and CGIF. Are others known? Links to commits that fix the vulns also appreciated.

                          mhitza@third-party.cyouM 1 Reply Last reply
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                          • rootwyrm@weird.autosR rootwyrm@weird.autos

                            @dangoodin that is EXACTLY what Anthropic said. LITERALLY it is the FIRST "vulnerability" they bogusly claim to have found.

                            > Neither of these methods yielded any significant findings. Eventually, however, Claude took a different approach: reading the Git commit history. Claude quickly found a security-relevant commit, and commented:

                            dangoodin@infosec.exchangeD This user is from outside of this forum
                            dangoodin@infosec.exchangeD This user is from outside of this forum
                            dangoodin@infosec.exchange
                            wrote last edited by
                            #14

                            @rootwyrm

                            Right, but the post doesn't say merely that the reports of the 500 vulns resulted in commits. It says all 500 were high-severity. If true, that would be significant, no?

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                            • rootwyrm@weird.autosR rootwyrm@weird.autos

                              @dangoodin that is EXACTLY what Anthropic said. LITERALLY it is the FIRST "vulnerability" they bogusly claim to have found.

                              > Neither of these methods yielded any significant findings. Eventually, however, Claude took a different approach: reading the Git commit history. Claude quickly found a security-relevant commit, and commented:

                              rootwyrm@weird.autosR This user is from outside of this forum
                              rootwyrm@weird.autosR This user is from outside of this forum
                              rootwyrm@weird.autos
                              wrote last edited by
                              #15

                              @dangoodin to which I said "hang the fuck on" and read a bit more. And hey look, it's in fonts... bounds checking...

                              Link Preview Image
                              Snyk Vulnerability Database | Snyk

                              Medium severity (7.8) Out-of-bounds Read in ghostscript-tools-fonts | CVE-2024-46956

                              favicon

                              Learn more about centos:10 with Snyk Open Source Vulnerability Database (security.snyk.io)

                              dangoodin@infosec.exchangeD 1 Reply Last reply
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                              • rootwyrm@weird.autosR rootwyrm@weird.autos

                                @dangoodin to which I said "hang the fuck on" and read a bit more. And hey look, it's in fonts... bounds checking...

                                Link Preview Image
                                Snyk Vulnerability Database | Snyk

                                Medium severity (7.8) Out-of-bounds Read in ghostscript-tools-fonts | CVE-2024-46956

                                favicon

                                Learn more about centos:10 with Snyk Open Source Vulnerability Database (security.snyk.io)

                                dangoodin@infosec.exchangeD This user is from outside of this forum
                                dangoodin@infosec.exchangeD This user is from outside of this forum
                                dangoodin@infosec.exchange
                                wrote last edited by
                                #16

                                @rootwyrm

                                CVSS is 7.8, which is high, no? That would seem to support the Anthropic's claim. What's the significance of the vulns being in fonts . . . bounds checking?

                                rootwyrm@weird.autosR 1 Reply Last reply
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                                • dangoodin@infosec.exchangeD dangoodin@infosec.exchange

                                  I'm curious to know what people think about Anthropic's claim that Claude found 500 high-severity vulnerabilities in open-source packages. Has anyone confirmed that these vulns were indeed high-severity and hadn't been discovered before? Is this development as big a deal as Anthropic says? Any other critiques?

                                  0-Days \ red.anthropic.com

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                                  cerement@social.targaryen.houseC This user is from outside of this forum
                                  cerement@social.targaryen.houseC This user is from outside of this forum
                                  cerement@social.targaryen.house
                                  wrote last edited by
                                  #17

                                  @dangoodin

                                  (on the flip side, curl ending their bug bounty program because of the flood of slop reports)

                                  salty@mastodon.nzS 1 Reply Last reply
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                                  • cerement@social.targaryen.houseC cerement@social.targaryen.house

                                    @dangoodin

                                    (on the flip side, curl ending their bug bounty program because of the flood of slop reports)

                                    salty@mastodon.nzS This user is from outside of this forum
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                                    salty@mastodon.nz
                                    wrote last edited by
                                    #18

                                    @cerement @dangoodin Exactly what I was going to point out.

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                                    • dangoodin@infosec.exchangeD dangoodin@infosec.exchange

                                      @rootwyrm

                                      CVSS is 7.8, which is high, no? That would seem to support the Anthropic's claim. What's the significance of the vulns being in fonts . . . bounds checking?

                                      rootwyrm@weird.autosR This user is from outside of this forum
                                      rootwyrm@weird.autosR This user is from outside of this forum
                                      rootwyrm@weird.autos
                                      wrote last edited by
                                      #19

                                      @dangoodin the significance is that by their own words, they didn't discover shit. Check the date on that CVE. But they're trying to claim dishonestly that their magical almost-to-AGI stochastic parrot totally discovered it.
                                      It did not. Period.

                                      dangoodin@infosec.exchangeD 1 Reply Last reply
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                                      • rootwyrm@weird.autosR rootwyrm@weird.autos

                                        @dangoodin the significance is that by their own words, they didn't discover shit. Check the date on that CVE. But they're trying to claim dishonestly that their magical almost-to-AGI stochastic parrot totally discovered it.
                                        It did not. Period.

                                        dangoodin@infosec.exchangeD This user is from outside of this forum
                                        dangoodin@infosec.exchangeD This user is from outside of this forum
                                        dangoodin@infosec.exchange
                                        wrote last edited by
                                        #20

                                        @rootwyrm

                                        I'm not arguing with you. Sorry if it sounds like I am. I don't have the same technical background you do and am asking how the 7.8-severity vuln shouldn't be considered high severity because it involves fonts . . . bounds checking? I'm asking you to explain the reasoning behind your assessment as if I was a student in a security 101 class.

                                        rootwyrm@weird.autosR hatter@metasocial.comH 2 Replies Last reply
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                                        • dangoodin@infosec.exchangeD dangoodin@infosec.exchange

                                          @rootwyrm

                                          I'm not arguing with you. Sorry if it sounds like I am. I don't have the same technical background you do and am asking how the 7.8-severity vuln shouldn't be considered high severity because it involves fonts . . . bounds checking? I'm asking you to explain the reasoning behind your assessment as if I was a student in a security 101 class.

                                          rootwyrm@weird.autosR This user is from outside of this forum
                                          rootwyrm@weird.autosR This user is from outside of this forum
                                          rootwyrm@weird.autos
                                          wrote last edited by
                                          #21

                                          @dangoodin the tl;dr is basically that they are making the completely bogus claim that they 'discovered' a vulnerability, because they found the commit, which was specifically to fix the already disclosed vulnerability.

                                          This is as insane as claiming to have shockingly discovered someone has a dog after they texted you pictures of them holding a puppy, asked you for name suggestions, set up IG and YT accounts for the puppy you subscribe to, and you hosted a puppy party at your house.

                                          mhitza@third-party.cyouM 1 Reply Last reply
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