{"id":"CVE-2026-92822","aliases":["DEBIAN-CVE-2026-92822","EUVD-2026-107037","GHSA-85r9-7wj5-x6x5","UBUNTU-CVE-2026-92822"],"status":"published","title":"Libmodulemd: libmodulemd: unbounded recursion when parsing nested xmd yaml","description":"A flaw was found in libmodulemd. When parsing module metadata, the xmd field is converted into nested GVariant values through recursive YAML mapping and sequence helpers without a recursion-depth or node-count limit. An attacker who can supply crafted modulemd YAML with deeply nested xmd content can cause stack exhaustion or excessive resource consumption, resulting in a denial of service.","severity":{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00251,"percentile":0.16626,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-674"],"published":"2026-10-21T03:18:37Z","modified":"2026-11-06T07:46:00Z","affected":[{"source":"osv","ecosystem":"Debian:12","package":"libmodulemd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.14.0-3","2.15.0-1","2.15.2-1","2.15.2-2","2.15.2-3","2.15.2-4","2.15.3-1"]},{"source":"osv","ecosystem":"Debian:13","package":"libmodulemd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.15.0-1","2.15.2-1","2.15.2-2","2.15.2-3","2.15.2-4","2.15.3-1"]},{"source":"osv","ecosystem":"Debian:14","package":"libmodulemd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.15.0-1","2.15.2-1","2.15.2-2","2.15.2-3","2.15.2-4","2.15.3-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"libmodulemd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.12.0-1","2.13.0-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"libmodulemd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.14.0-3","2.14.0-3build1","2.14.0-3build2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"libmodulemd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.15.2-3","2.15.2-4","2.15.3-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"libmodulemd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.15.0-1","2.15.2-1","2.15.2-3"]}],"products":[{"vendor":"red hat","product":"red hat enterprise linux 10"},{"vendor":"red hat","product":"red hat enterprise linux 8"},{"vendor":"red hat","product":"red hat enterprise linux 9"},{"vendor":"red hat","product":"red hat hardened images"},{"vendor":"red hat","product":"red hat openshift ai (rhoai)"},{"vendor":"red hat","product":"red hat openshift container platform 4"},{"vendor":"red hat","product":"red hat openshift container platform 5"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-92822","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2479002","tags":["issue-tracking","x_refsource_REDHAT","exploit","report"]},{"url":"https://github.com/advisories/GHSA-85r9-7wj5-x6x5"},{"url":"https://github.com/fedora-modularity/libmodulemd/pull/645"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92822"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-92822","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-92822","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-92822","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-92822","title":"Libmodulemd: libmodulemd: unbounded recursion when parsing nested xmd yaml","description":"A flaw was found in libmodulemd. When parsing module metadata, the xmd field is converted into nested GVariant values through recursive YAML mapping and sequence helpers without a recursion-depth or node-count limit. An attacker who can supply crafted modulemd YAML with deeply nested xmd content can cause stack exhaustion or excessive resource consumption, resulting in a denial of service.","status":"published","published":"2026-10-21T03:18:37.973Z","modified":"2026-11-06T07:46:00.114Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-674"],"updated_at":"2026-11-06T08:57:32.08691Z"}],"euvd":[{"id":"EUVD-2026-107037","description":"A flaw was found in libmodulemd. When parsing module metadata, the xmd field is converted into nested GVariant values through recursive YAML mapping and sequence helpers without a recursion-depth or node-count limit. An attacker who can supply crafted modulemd YAML with deeply nested xmd content can cause stack exhaustion or excessive resource consumption, resulting in a denial of service.","status":"published","published":"2026-10-21T03:18:37Z","modified":"2026-11-06T07:46:00Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-06T09:04:28.113071Z"}],"ghsa":[{"id":"GHSA-85r9-7wj5-x6x5","title":"A flaw was found in libmodulemd. When parsing module metadata, the xmd field is converted into...","description":"A flaw was found in libmodulemd. When parsing module metadata, the xmd field is converted into nested GVariant values through recursive YAML mapping and sequence helpers without a recursion-depth or node-count limit. An attacker who can supply crafted modulemd YAML with deeply nested xmd content can cause stack exhaustion or excessive resource consumption, resulting in a denial of service.","status":"published","published":"2026-10-21T06:31:13Z","modified":"2026-11-06T03:30:28Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-674"],"updated_at":"2026-11-06T03:57:47.011451Z"}],"nvd":[{"id":"CVE-2026-92822","description":"A flaw was found in libmodulemd. When parsing module metadata, the xmd field is converted into nested GVariant values through recursive YAML mapping and sequence helpers without a recursion-depth or node-count limit. An attacker who can supply crafted modulemd YAML with deeply nested xmd content can cause stack exhaustion or excessive resource consumption, resulting in a denial of service.","status":"published","published":"2026-10-21T04:18:11.98Z","modified":"2026-11-06T08:17:38.54Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-674"],"updated_at":"2026-11-06T11:59:58.099772Z"}],"osv":[{"id":"DEBIAN-CVE-2026-92822","description":"A flaw was found in libmodulemd. When parsing module metadata, the xmd field is converted into nested GVariant values through recursive YAML mapping and sequence helpers without a recursion-depth or node-count limit. An attacker who can supply crafted modulemd YAML with deeply nested xmd content can cause stack exhaustion or excessive resource consumption, resulting in a denial of service.","status":"published","published":"2026-10-21T04:18:11.98Z","modified":"2026-11-07T09:47:37.915628367Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-07T10:14:19.880839Z"},{"id":"UBUNTU-CVE-2026-92822","description":"A flaw was found in libmodulemd. When parsing module metadata, the xmd field is converted into nested GVariant values through recursive YAML mapping and sequence helpers without a recursion-depth or node-count limit. An attacker who can supply crafted modulemd YAML with deeply nested xmd content can cause stack exhaustion or excessive resource consumption, resulting in a denial of service.","status":"published","published":"2026-10-21T04:18:00Z","modified":"2026-10-28T20:18:17.795751486Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T16:57:40.980117Z"}]}}