{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-102577","assignerOrgId":"92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5","state":"PUBLISHED","assignerShortName":"fedora","dateReserved":"2026-09-29T14:03:38.493Z","datePublished":"2026-09-30T08:35:59.663Z","dateUpdated":"2026-09-30T14:37:24.853Z"},"containers":{"cna":{"title":"Moodle: ssrf risk in url downloader via ipv4-mapped ipv6 address bypass","metrics":[{"other":{"content":{"value":"Moderate","namespace":"https://access.redhat.com/security/updates/classification/"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"format":"CVSS"}],"descriptions":[{"lang":"en","value":"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":[{"versions":[{"status":"affected","version":"5.2.0","lessThan":"5.2.2","versionType":"semver"},{"status":"affected","version":"5.1.0","lessThan":"5.1.6","versionType":"semver"},{"status":"affected","version":"5.0.0","lessThan":"5.0.9","versionType":"semver"},{"status":"affected","version":"0","lessThan":"4.5.13","versionType":"semver"}],"packageName":"moodle","collectionURL":"https://git.moodle.org","defaultStatus":"unaffected"}],"references":[{"url":"http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-88779"},{"url":"https://access.redhat.com/security/cve/CVE-2026-102577","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2543604","name":"RHBZ#2543604","tags":["issue-tracking","x_refsource_REDHAT"]},{"url":"https://moodle.org/mod/forum/discuss.php?d=482495"}],"datePublic":"2026-09-29T20:17:12.000Z","problemTypes":[{"descriptions":[{"cweId":"CWE-918","description":"Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}]}],"x_redhatCweChain":"CWE-918: Server-Side Request Forgery (SSRF)","timeline":[{"lang":"en","time":"2026-09-09T13:08:58.000Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-09-29T20:17:12.000Z","value":"Made public."}],"credits":[{"lang":"en","value":"Upstream acknowledges Kaique Costa as the original reporter."}],"providerMetadata":{"orgId":"92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5","shortName":"fedora","dateUpdated":"2026-09-30T08:35:59.663Z"},"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-30T14:37:13.429164Z","id":"CVE-2026-102577","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-30T14:37:24.853Z"}}]}}