CVE-2026-27780 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable yes

Technical Impact total

Vendors	Products
Gitea	Gitea Open Source Git Server

No data.

No data.

References

Link	Providers
https://blog.gitea.com/release-of-1.26.0/
https://github.com/go-gitea/gitea/pull/36963
https://github.com/go-gitea/gitea/releases/tag/v1.26.0

History

Mon, 06 Jul 2026 23:15:00 +0000

Type	Values Removed	Values Added
First Time appeared		Gitea Gitea gitea Open Source Git Server
Vendors & Products		Gitea Gitea gitea Open Source Git Server

Mon, 06 Jul 2026 16:30:00 +0000

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}` ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Fri, 03 Jul 2026 20:45:00 +0000

Type	Values Removed	Values Added
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.
Title		Gitea pre-receive hook can miss branch-protection checks after scanner errors
Weaknesses		CWE-863
References		https://blog.gitea.com/release-of-1.26.0/ https://github.com/go-gitea/gitea/pull/36963 https://github.com/go-gitea/gitea/releases/tag/v1.26.0

MITRE

Status: PUBLISHED

Assigner: Gitea

Published: 2026-07-03T20:19:37.968Z

Updated: 2026-07-06T15:20:06.013Z

Reserved: 2026-03-03T03:25:28.724Z

Link: CVE-2026-27780

Vulnrichment

Updated: 2026-07-06T15:19:54.650Z

NVD

No data.

Redhat

No data.

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