CVE-2026-27780

criticalpriority · track · 0OT risk · elevatedEPSS 0.006 · 50 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.64% (50th) EPSS

CVSS 9.8 · critical

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · osv · cert_bund

EPSS · scored 2026-10-26

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.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-863USCWE-863US

affected products (4)

Products and version ranges known to be affected.

Open Source Gitea <1.26.0all versionscert_bundDE
Open Source Gitea< 1.26.0cert_bundDE
Gitea Gitea Open Source Git Server0 → 1.26.0enisa_euvdEU
Go code.gitea.io/gitea< 1.26.0osvUSpkg:golang/code.gitea.io/gitea

advisories (3)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1172Gitea: Mehrere SchwachstellenDeutsch2026-04-19csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Gitea ausnutzen, um Informationen offenzulegen, um Sicherheitsvorkehrungen zu umgehen, und um einen Cross-Site Scripting Angriff durchzuführen.
GHSA-vhq7-fwwh-7hjfGitea pre-receive hook scanner errors allow branch-protection bypass2026-07-03ghsa · osvUS
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.
GO-2026-6346Gitea pre-receive hook scanner errors allow branch-protection bypass in code.gitea.io/gitea2026-09-10vendor · osvUS
Gitea pre-receive hook scanner errors allow branch-protection bypass in code.gitea.io/gitea

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv cert_bund NVD CVE.org MITRE

published 2026-07-03modified 2026-10-25

references (10)

External citations — patches, advisories, analysis.

scry

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