CVE-2026-102577

Description

A flaw was found in Moodle. Incorrect handling of IPv4-mapped IPv6 addresses within the URL downloader's host-blocking logic allows an authenticated remote user to bypass blocked-host restrictions. By supplying a crafted URL, an attacker can induce the server to make requests to restricted destinations, leading to Server-Side Request Forgery (SSRF).

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Produits concernés

• Moodle moodle

Scores CVSS

Faiblesses (CWE)

• CWE-918

Références

• http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-88779 Patch
• https://access.redhat.com/security/cve/CVE-2026-102577 Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2543604 Issue TrackingThird Party Advisory
• https://moodle.org/mod/forum/discuss.php?d=482495 Vendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories