CVE-2026-20800

Notification API Leaks Private Repository Issue Titles After Collaborator Permission Revocation

At a glance

Severity: MEDIUM 6.5
EPSS: EPSS 0.41 % · percentile 35 (2026-10-27)
State: PUBLISHED
Published: 2026-01-22
Updated: 2026-01-23
Assigner: Gitea
NVD status: Analyzed

Description

Gitea's notification API does not re-validate repository access permissions when returning notification details. After a user's access to a private repository is revoked, they may still view issue and pull request titles through previously received notifications.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	MEDIUM 6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	CISA-ADP
CVSS 3.1	MEDIUM 6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Weaknesses (CWE)

CWE-200

Advisories

GHSA-2vgv-hgv4-22mh — Gitea improperly exposes issue and pull request titles
GO-2026-4362 — Gitea improperly exposes issue and pull request titles in code.gitea.io/gitea

European references

ENISA EUVD · EUVD-2026-4268
GCVE · GCVE-0-2026-20800

Affected configurations (NVD CPE)

cpe:2.3:a:gitea:gitea:*:*:*:*:*:-:*:* < 1.25.4

Affected products

Product	Versions
Gitea · Gitea Open Source Git Server	affected 0 ≤ 1.25.3

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD