CVE-2026-95112

When processing issue and comment bodies, Gitea scanned the entire preceding text for action keywords such as "closes" or "fixes" once per Markdown link, giving processing time quadratic in the input size. An authenticated user able to submit issue or comment content could send a crafted body of about 1 MB that keeps a CPU core busy for several minutes while holding a database transaction open.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://blog.gitea.com/release-of-28.0.0/	Release Notes
https://github.com/go-gitea/gitea/pull/39396	Patch
https://github.com/go-gitea/gitea/releases/tag/v28.0.0	Release Notes
https://github.com/go-gitea/gitea/security/advisories/GHSA-467c-4w7p-8427	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:gitea:gitea:*:*:*:*:*:*:*:*

History

13 Oct 2026, 15:36

Type	Values Removed	Values Added
First Time		Gitea gitea Gitea
References	~~() https://blog.gitea.com/release-of-28.0.0/ -~~	() https://blog.gitea.com/release-of-28.0.0/ - Release Notes
References	~~() https://github.com/go-gitea/gitea/pull/39396 -~~	() https://github.com/go-gitea/gitea/pull/39396 - Patch
References	~~() https://github.com/go-gitea/gitea/releases/tag/v28.0.0 -~~	() https://github.com/go-gitea/gitea/releases/tag/v28.0.0 - Release Notes
References	~~() https://github.com/go-gitea/gitea/security/advisories/GHSA-467c-4w7p-8427 -~~	() https://github.com/go-gitea/gitea/security/advisories/GHSA-467c-4w7p-8427 - Vendor Advisory
CPE		cpe:2.3:a:gitea:gitea::::::::

08 Oct 2026, 13:17

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.5
CWE		CWE-407

06 Oct 2026, 20:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-06 20:17

Updated : 2026-10-13 15:36

NVD link : CVE-2026-95112

Mitre link : CVE-2026-95112

CVE.ORG link : CVE-2026-95112

JSON object : View

Products Affected

gitea

gitea

CWE

CWE-407

Inefficient Algorithmic Complexity

{"id": "CVE-2026-95112", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-95112", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-08T12:25:19.083201Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "affected": [{"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "affectedData": [{"vendor": "Gitea", "product": "Gitea", "versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "1.27.3"}], "packageName": "gitea.dev", "defaultStatus": "unaffected"}]}], "published": "2026-10-06T20:17:34.963", "references": [{"url": "https://blog.gitea.com/release-of-28.0.0/", "tags": ["Release Notes"], "source": "88ee5874-cf24-4952-aea0-31affedb7ff2"}, {"url": "https://github.com/go-gitea/gitea/pull/39396", "tags": ["Patch"], "source": "88ee5874-cf24-4952-aea0-31affedb7ff2"}, {"url": "https://github.com/go-gitea/gitea/releases/tag/v28.0.0", "tags": ["Release Notes"], "source": "88ee5874-cf24-4952-aea0-31affedb7ff2"}, {"url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-467c-4w7p-8427", "tags": ["Vendor Advisory"], "source": "88ee5874-cf24-4952-aea0-31affedb7ff2"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-407"}]}], "descriptions": [{"lang": "en", "value": "When processing issue and comment bodies, Gitea scanned the entire preceding text for action keywords such as \"closes\" or \"fixes\" once per Markdown link, giving processing time quadratic in the input size. An authenticated user able to submit issue or comment content could send a crafted body of about 1 MB that keeps a CPU core busy for several minutes while holding a database transaction open."}], "lastModified": "2026-10-13T15:36:44.343", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:gitea:gitea:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B7A6F93E-7785-4553-A8BB-DA84ACFF76F0", "versionEndExcluding": "28.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "88ee5874-cf24-4952-aea0-31affedb7ff2"}