CVE-2025-52477

HIGH EPSS 32.8%
Published Jun 26, 20251y ago · Modified Jun 17, 20262w ago
8.6 CVSS 3.1
High
Find Similar
Published Jun 26, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
8.6
Exploitability
3.9
Impact
4.0
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Changed
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
32.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-918 Server-Side Request Forgery (SSRF) Validation

References 3

  • github.com https://github.com/octo-sts/app/commit/0f177fde54f9318e33f0bba6abaea9463a7c3afd
  • github.com https://github.com/octo-sts/app/commit/b3976e39bd8c8c217c0670747d34a4499043da92
  • github.com https://github.com/octo-sts/app/security/advisories/GHSA-h3qp-hwvr-9xcq

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.