CVE-2026-27780 Details
Description
Gitea versions before 1.26.0 do not fail closed on bufio.Scanner errors while processing pre-receive hook input, allowing oversized input to bypass branch-protection checks.
A vulnerability in Gitea versions prior to 1.26.0 allows oversized input to bypass branch protection checks. This issue arises because the application does not properly handle errors from the bufio.Scanner when processing pre-receive hook input, enabling the input to exceed expected limits and circumvent protection mechanisms.
Users can upgrade to Gitea version 1.26.0 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jul 3, 2026CISA-ADP
Assessed Jul 6, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://blog.gitea.com/release-of-1.26.0/ | Gitea Limited | AdvisoryBundleRemedyVendor |
| https://github.com/go-gitea/gitea/pull/36963 | Gitea Limited | Issue TrackingVendor |
| https://github.com/go-gitea/gitea/releases/tag/v1.26.0 | Gitea Limited | Release NotesVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-863 | Incorrect Authorization | Gitea Limited |
Affected Products
| Product | Versions |
|---|---|
| Gitea | < 1.26.0 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 6, 2026 | CVE Modified | CISA-ADP |
| Jul 3, 2026 | New CVE Received | Gitea Limited |