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GHSA-h3qp-hwvr-9xcq

Octo STS Unauthenticated SSRF by abusing fields in OpenID Connect tokens

Source: GitHub Advisory Database (reviewed) High CVE-2025-52477

Packages

EcosystemPackageAffectedFixed in
Go github.com/octo-sts/app < 0.5.3 0.5.3

Details

As written in the advisory (Markdown source, shown as plain text).

## Summary Octo-STS versions before v0.5.3 are vulnerable to unauthenticated SSRF by abusing fields in OpenID Connect tokens. Malicious tokens were shown to trigger internal network requests which could reflect error logs with sensitive information. Please upgrade to v0.5.3 to resolve this issue. This version includes patch sets to [sanitize input](https://github.com/octo-sts/app/commit/b3976e39bd8c8c217c0670747d34a4499043da92) and [redact logging](https://github.com/octo-sts/app/commit/0f177fde54f9318e33f0bba6abaea9463a7c3afd). Many thanks to @vicevirus for reporting this issue and for assisting with remediation review. ## References - https://github.com/octo-sts/app/security/advisories/GHSA-h3qp-hwvr-9xcq - https://github.com/octo-sts/app/commit/b3976e39bd8c8c217c0670747d34a4499043da92 - https://github.com/octo-sts/app/commit/0f177fde54f9318e33f0bba6abaea9463a7c3afd

References

External links from the advisory. They lead to third-party sites.