CVEvulnerability
CVE-2026-102577
4.3 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-09-30
- Last modified
- 2026-10-01
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 4.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- Weaknesses
- CWE-918
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).
Affected configurations
• moodle moodle (< 4.5.13)
• moodle moodle (>= 5.0.0 < 5.0.9)
• moodle moodle (>= 5.1.0 < 5.1.6)
• moodle moodle (>= 5.2.0 < 5.2.2)
Related
Weakness · CWE (1)
- CWE-918 Server-Side Request Forgery weakness
References
- 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 Tracking, Third Party Advisory
- https://moodle.org/mod/forum/discuss.php?d=482495 Vendor Advisory