CVE-2026-26195: Gogs: Stored XSS in branch and wiki views through author and committer names

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-03-05 · updated 2026-06-17
Weakness: CWE-79

Description

Gogs is an open source self-hosted Git service. Prior to version 0.14.2, stored xss is still possible through unsafe template rendering that mixes user input with safe plus permissive sanitizer handling of data urls. This issue has been patched in version 0.14.2.

Affected products

gogs: before 0.14.2 — fixed in 0.14.2

How to fix

Upgrade to a fixed version: gogs 0.14.2. Check the vendor advisory for mitigations.

References

https://github.com/gogs/gogs/commit/ac21150a53bef3a3061f4da787ab193a8d68ecfc
https://github.com/gogs/gogs/pull/8176
https://github.com/gogs/gogs/releases/tag/v0.14.2
https://github.com/gogs/gogs/security/advisories/GHSA-vgvf-m4fw-938j

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