CVE-2026-23603

Blind SSRF in OAuth2 avatar synchronization via unvalidated OIDC picture claim

Published Aug 13, 2026 CVSS 3.1 · 3.1 Low EPSS < 1% KEV · Not listed
Description
Blind SSRF in OAuth2 avatar synchronization via unvalidated OIDC picture claim

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-x77v-q46j-393g Gitea: Blind SSRF in OAuth2 avatar synchronization via unvalidated OIDC picture claim
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N'}

Type Values Removed Values Added
First Time appeared Gitea
Gitea gitea Open Source Git Server
Vendors & Products Gitea
Gitea gitea Open Source Git Server
Type Values Removed Values Added
Description Blind SSRF in OAuth2 avatar synchronization via unvalidated OIDC picture claim
Title Blind SSRF in OAuth2 avatar synchronization via unvalidated OIDC picture claim
Weaknesses CWE-918
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Gitea
Published
Updated
Aug 14, 2026, 5:45 PM
Reserved
Mar 3, 2026, 3:25 AM
Status
Deferred
Published
Aug 13, 2026, 5:17 PM
Modified
Aug 26, 2026, 4:53 PM