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TI-2026-21246 Aliases CVE-2026-26276GHSA-vgjm-2cpf-4g7c

Gogs: DOM-based XSS via milestone selection

Priority LOW 33CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00219 12th percentileScored 2026-11-07
Fix Fixed gogs (gogs): 0.14.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Gogsgogsbefore 0.14.20.14.2Patch availableCNA
—gogs.io/gogs (Go)up to 0.13.3—No fix listedGHSA-vgjm-2cpf-4g7c
  • gogs VendorGogs Affected before 0.14.2 Fixed in 0.14.2 Patch available CNA
  • gogs.io/gogs (Go) Vendor— Affected up to 0.13.3 Fixed in — No fix listed GHSA-vgjm-2cpf-4g7c

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:gogs:gogs:*:*:*:*:*:*:*:*before 0.14.2VulnerableGogs
  • cpe:2.3:a:gogs:gogs:*:*:*:*:*:*:*:* Versions before 0.14.2 Vulnerable ·Gogs

Remediation

  • Fix · CNA gogs (gogs) Fixed in 0.14.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-26276
  2. 2026-10-03 Alias added: GHSA-vgjm-2cpf-4g7c

References

Advisory 2

Other 4

  • TI-2025-07419 File overwrite in file update API in Gogs KEVCVSS 4.0HIGH 8.7
  • TI-2022-01876 OS Command Injection in gogs/gogs CVSS 3.1CRITICAL 9.8
  • TI-2024-36988 Gogs has a Path Traversal in file update API CVSS 4.0HIGH 8.7
  • TI-2022-01744 Remote Command Execution in gogs/gogs CVSS 3.1CRITICAL 10.0
  • TI-2025-39562 Gogs's update .git/config file allows remote command execution CVSS 4.0CRITICAL 9.3
  • TI-2026-20951 Gogs: Cross-repository LFS object overwrite via missing content hash verification CVSS 3.1CRITICAL 9.3
See all 48 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences