MEDIUM 4.3 NVD
CVE-2026-102577
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
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).
References
- http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-88779
- https://access.redhat.com/security/cve/CVE-2026-102577
- https://bugzilla.redhat.com/show_bug.cgi?id=2543604
- https://moodle.org/mod/forum/discuss.php?d=482495
This medium severity vulnerability with a CVSS score of 4.3 was published on 2026-09-30 via NVD.
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