CVE-2026-96580

highpriority · track · 0EPSS 0.004 · 28 %ileDEUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.35% (28th) EPSS

CVSS 7.5 · high

Is it mine?

6 products

Check your exposure

Who says so?

3 sources

osv · cert_bund · nvd

EPSS · scored 2026-10-26

Gitea expanded a workflow's static `strategy.matrix` into its full Cartesian product without a size limit when creating a run, before the fork pull request approval gate applied. A user who can open a pull request from a fork could submit a small workflow file whose matrix expands to a very large number of jobs, consuming server memory and potentially terminating the Gitea process. No runner is required. Static matrices above 256 combinations are now rejected before expansion.

cvss

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

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondaryexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400US

affected products (6)

Products and version ranges known to be affected.

Open Source Gitea <28.0.0all versionscert_bundDE
Open Source Gitea <28.0.1all versionscert_bundDE
Open Source Gitea< 28.0.0cert_bundDE
Open Source Gitea< 28.0.1cert_bundDE
gitea gitea< 28.0.0nvdUScpe:2.3:a:gitea:gitea:*:*:*:*:*:*:*:*
Bitnami gitea< 28.0.0osvUSpkg:bitnami/gitea

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-3792Gitea: Mehrere SchwachstellenDeutsch2026-10-06csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Gitea ausnutzen, um beliebigen Programmcode auszuführen, erweiterte Berechtigungen zu erlangen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren oder offenzulegen sowie Cross-Site-Scripting-Angriffe durchzuführen.
BIT-gitea-2026-96580Gitea Actions memory exhaustion through large static matrices2026-10-14vendor · osvUS
Gitea expanded a workflow's static `strategy.matrix` into its full Cartesian product without a size limit when creating a run, before the fork pull request approval gate applied. A user who can open a pull request from a fork could submit a small workflow file whose matrix expands to a very large number of jobs, consuming server memory and potentially terminating the Gitea process. No runner is required. Static matrices above 256 combinations are now rejected before expansion.

also known as (1)

Other names and identifiers for this entity.

GHSA-p3rv-cr5f-9gjh osv

sources

Which sources assert this record, and when.

osv cert_bund nvd NVD CVE.org MITRE

published 2026-10-06modified 2026-10-13

references (4) nvd

External citations — patches, advisories, analysis.

https://blog.gitea.com/release-of-28.0.0/Release Notes
https://github.com/go-gitea/gitea/pull/39295Patch
https://github.com/go-gitea/gitea/releases/tag/v28.0.0Release Notes
https://github.com/go-gitea/gitea/security/advisories/GHSA-p3rv-cr5f-9gjhVendor Advisory

scry

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