anonhaven

CVE-2026-23603

LOW CVSS 3.1: 3.1 EPSS 0.25%
Updated Aug 14, 2026
Blind
Parameter Value
CVSS 3.1 (LOW)
Type CWE-918 (Server-Side Request Forgery (SSRF))
Vendor Blind
Public PoC No

Blind SSRF in OAuth2 avatar synchronization via unvalidated OIDC picture claim

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v3.1

Weakness Type (CWE)

CWE-918 Server-Side Request Forgery (SSRF)

References 3

https://blog.gitea.com/gitea-1.27.0-is-released/
88ee5874-cf24-4952-aea0-31affedb7ff2
https://github.com/go-gitea/gitea/releases/tag/v1.27.0
88ee5874-cf24-4952-aea0-31affedb7ff2
https://github.com/go-gitea/gitea/security/advisories/GHSA-x77v-q46j-393g
88ee5874-cf24-4952-aea0-31affedb7ff2
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