Oasdiff Action
Monthly
Server-Side Request Forgery and structured file disclosure in oasdiff-action prior to version 0.0.51 allows unauthenticated remote attackers to make the GitHub Actions runner fetch arbitrary URLs or read filesystem paths by embedding malicious `$ref` entries in an attacker-controlled OpenAPI spec. The vulnerability is directly exploitable via fork pull requests on public repositories, requiring no interaction from maintainers beyond the normal CI workflow execution. No public exploit has been identified, but the fix PRs (128-130) provide a clear technical blueprint of the attack surface.
Server-Side Request Forgery and structured file disclosure in oasdiff-action prior to version 0.0.51 allows unauthenticated remote attackers to make the GitHub Actions runner fetch arbitrary URLs or read filesystem paths by embedding malicious `$ref` entries in an attacker-controlled OpenAPI spec. The vulnerability is directly exploitable via fork pull requests on public repositories, requiring no interaction from maintainers beyond the normal CI workflow execution. No public exploit has been identified, but the fix PRs (128-130) provide a clear technical blueprint of the attack surface.