High severity8.6OSV Advisory· Published Jun 26, 2025· Updated Apr 15, 2026
CVE-2025-52477
CVE-2025-52477
Description
Octo-STS is a GitHub App that acts like a Security Token Service (STS) for the GitHub API. 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. Upgrade to v0.5.3 to resolve this issue. This version includes patch sets to sanitize input and redact logging.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/octo-sts/appGo | < 0.5.3 | 0.5.3 |
Affected products
7- osv-coords6 versionspkg:apk/chainguard/octo-stspkg:apk/chainguard/octo-sts-webhookpkg:apk/wolfi/octo-stspkg:apk/wolfi/octo-sts-webhookpkg:golang/github.com/octo-sts/apppkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Tumbleweed
< 0.5.3-r0+ 5 more
- (no CPE)range: < 0.5.3-r0
- (no CPE)range: < 0.5.3-r0
- (no CPE)range: < 0.5.3-r0
- (no CPE)range: < 0.5.3-r0
- (no CPE)range: < 0.5.3
- (no CPE)range: < 0.0.20250730T213748-1.1
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-h3qp-hwvr-9xcqghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-52477ghsaADVISORY
- github.com/octo-sts/app/commit/0f177fde54f9318e33f0bba6abaea9463a7c3afdnvdWEB
- github.com/octo-sts/app/commit/b3976e39bd8c8c217c0670747d34a4499043da92nvdWEB
- github.com/octo-sts/app/security/advisories/GHSA-h3qp-hwvr-9xcqnvdWEB
News mentions
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