6.5

CVE-2026-20904: gitea Improper Access Control

CVSS: 6.5v3.1MediumAnalyzed
AliasesGHSA-qqgv-v353-cv8pBIT-gitea-2026-20904GHSA-jrpc-w85r-hgqx
Published 22-01-2026Last modified 23-01-2026
Open JSON

Vulnerability summary

CVE-2026-20904 is a medium (CVSS 6.5) Improper Access Control vulnerability in gitea. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 21.5% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.30%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 2
OPENSUSE-SU-2026:21483-1SUSE-SU-2026:0403-1

Timeline

  1. 22-01-2026
    PublishedVulnerability first disclosed.
  2. 23-01-2026
    Last modifiedVulnerability information updated.

Description

Gitea does not properly validate ownership when toggling OpenID URI visibility. An authenticated user may be able to change the visibility settings of other users' OpenID identities.

CVSS metrics

3 scores · 3 sources · 2 versions

EPSS trend

Probability

0.30%

Chance of exploitation in the next 30 days

Percentile

22%

Versus all other CVEs

30-day change

0.00 pp

From 0.31% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.30%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Gitea2 products
Code.gitea.io1 product
  • gitea< 1.25.4
Github.com/go-gitea1 product
  • gitea< 1.25.4

3 vendors · 4 products

References

10 links