CVE-2026-20912

criticalpriority · track · 0EPSS 0.005 · 39 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.46% (39th) EPSS

CVSS 9.1 · critical

Is it mine?

8 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · osv · cert_bund

EPSS · scored 2026-10-27

Gitea does not properly validate repository ownership when linking attachments to releases. An attachment uploaded to a private repository could potentially be linked to a release in a different public repository, making it accessible to unauthorized users.

cvss

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

9.1

010

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

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Nsecondary · ENISA EU

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Nsecondaryexploitability 3.9 · impact 5.2

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-283USCWE-284USCWE-284USCWE-639US

affected products (8)

Products and version ranges known to be affected.

Open Source Gitea <1.25.4all versionscert_bundDE
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
Open Source Gitea< 1.25.4cert_bundDE
Gitea Gitea Open Source Git Server≤ 0 ≤1.25.3enisa_euvdEU
gitea gitea< 1.25.4nvdUScpe:2.3:a:gitea:gitea:*:*:*:*:*:*:*:*
Bitnami gitea< 1.25.4osvUSpkg:bitnami/gitea
Go code.gitea.io/gitea< 1.25.4osvUSpkg:golang/code.gitea.io/gitea
Go github.com/go-gitea/gitea< 1.25.4osvUSpkg:golang/github.com/go-gitea/gitea

advisories (4)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-0200Gitea: Mehrere SchwachstellenDeutsch2026-01-22csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Gitea ausnutzen, um Informationen offenzulegen, und um Sicherheitsvorkehrungen zu umgehen.
GHSA-4xx9-vc8v-87hvGitea does not properly validate repository ownership when linking attachments to releases2026-01-23ghsa · osvUS
Gitea does not properly validate repository ownership when linking attachments to releases. An attachment uploaded to a private repository could potentially be linked to a release in a different public repository, making it accessible to unauthorized users.
BIT-gitea-2026-20912Gitea: Cross-Repository Authorization Bypass via Release Attachment Linking Leads to Private Attachment Disclosure2026-01-30vendor · osvUS
Gitea does not properly validate repository ownership when linking attachments to releases. An attachment uploaded to a private repository could potentially be linked to a release in a different public repository, making it accessible to unauthorized users.
GO-2026-4364Gitea does not properly validate repository ownership when linking attachments to releases in code.gitea.io/gitea2026-02-02vendor · osvUS
Gitea does not properly validate repository ownership when linking attachments to releases in code.gitea.io/gitea

also known as (7)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv cert_bund nvd NVD CVE.org MITRE

published 2026-01-22modified 2026-07-15

references (19)

External citations — patches, advisories, analysis.

scry

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