Blind SSRF in OAuth2 avatar synchronization via unvalidated OIDC picture claim

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 2f3568eb-999e-11f1-a655-3497f65b111b advisory.

    Gitea reports     This release contains fixes for 45 security issues,             including privilege escalation, remote denial of service,             server-side request forgery, authorization and token scope             bypasses, and information disclosure vulnerabilities.
            Please upgrade as soon as possible.


Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - Blind SSRF in OAuth2 avatar synchronization via unvalidated OIDC picture claim (CVE-2026-23603)

ID	Name	Product	Family	Type	Severity
335951	FreeBSD : gitea -- Multiple vulnerabilities (2f3568eb-999e-11f1-a655-3497f65b111b)	Nessus	FreeBSD Local Security Checks	Local	critical
445112	SCA: security update for code.gitea.io/gitea (GHSA-x77v-q46j-393g)	Tenable Cloud Security	SCA Checks	Local	low
445112	SCA: security update for code.gitea.io/gitea (GHSA-x77v-q46j-393g)	Tenable Self-Hosted Container Security	SCA Checks	Local	low

Detections

Analytics

CVE-2026-23603

low

Tenable Plugins

critical

low

low