Medium 6.5Published Oct 14, 2026

CVE-2026-70406Gitea private comparison disclosure with public-only tokens

Updated under an hour ago (2026-10-19 05:50 UTC)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for Gitea

Exploited in the last 30 days

Gitea's shared comparison helper omits the token repository-access check used when updating pull requests. A public-only token with read:repository scope can route a comparison or pull request creation through a public base repository and retrieve commit history and diffs from a private head repository accessible to the token owner. This bypasses the token's public-only restriction; it does not remove the account's underlying repository permission checks.

CVSS: 6.5 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-863
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Gitea
NVD analysis: Deferred
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 14, 2026

Affected products

Affected products

Gitea Gitea gitea:gitea (from the name)	through 1.27.2	CNA record

References

https://github.com/go-gitea/gitea/security/advisories/GHSA-m78w-jjjx-gp8rvendor-advisory
https://blog.gitea.com/release-of-1.27.3/release-notes
https://github.com/go-gitea/gitea/pull/39006patch
https://github.com/go-gitea/gitea/pull/39013patch
https://github.com/go-gitea/gitea/releases/tag/v1.27.3release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.