{"id":"CVE-2013-6401","aliases":["DEBIAN-CVE-2013-6401","EUVD-2013-6222","GHSA-qjq9-rwgx-jjhc","UBUNTU-CVE-2013-6401","openSUSE-SU-2024:10331-1"],"status":"published","title":"Jansson, possibly 2.4 and earlier, does not restrict the ability to trigger hash collisions...","description":"Jansson, possibly 2.4 and earlier, does not restrict the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted JSON document.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02007,"percentile":0.80966,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-310"],"published":"2014-03-20T18:00:00Z","modified":"2026-09-01T20:02:14Z","fixes":[{"ecosystem":"Debian:12","package":"jansson","fixed_in":["2.6-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"jansson","fixed_in":["2.6-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"jansson","fixed_in":["2.6-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:14.04:LTS","package":"jansson","fixed_in":["2.5-2ubuntu0.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"jansson","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"jansson","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"jansson","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:14.04:LTS","package":"jansson","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5-2ubuntu0.1"}]}],"versions":["2.4-1","2.5-1","2.5-1ubuntu1","2.5-2"]}],"products":[{"vendor":"jansson_project","product":"jansson"}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1035538","tags":["x_refsource_CONFIRM","x_transferred","report"]},{"url":"http://lists.opensuse.org/opensuse-updates/2014-03/msg00057.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","web"]},{"url":"https://github.com/akheron/jansson/commit/8f80c2d83808150724d31793e6ade92749b1faa4","tags":["x_refsource_CONFIRM","x_transferred","fix"]},{"url":"http://comments.gmane.org/gmane.comp.security.oss.general/12099","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-6401"},{"url":"https://github.com/advisories/GHSA-qjq9-rwgx-jjhc"},{"url":"https://security-tracker.debian.org/tracker/CVE-2013-6401","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2013-6401","tags":["report"]},{"url":"http://www.openwall.com/lists/oss-security/2014/02/11/7","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2013-6401","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2013-6401","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2013-6401","description":"Jansson, possibly 2.4 and earlier, does not restrict the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted JSON document.","status":"published","published":"2014-03-20T18:00:00Z","modified":"2024-08-06T17:39:01.595Z","updated_at":"2026-11-02T14:34:57.195423Z"}],"euvd":[{"id":"EUVD-2013-6222","description":"Jansson, possibly 2.4 and earlier, does not restrict the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted JSON document.","status":"published","published":"2014-03-20T18:00:00Z","modified":"2024-08-06T17:39:01Z","updated_at":"2026-11-03T01:56:26.306678Z"}],"ghsa":[{"id":"GHSA-qjq9-rwgx-jjhc","title":"Jansson, possibly 2.4 and earlier, does not restrict the ability to trigger hash collisions...","description":"Jansson, possibly 2.4 and earlier, does not restrict the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted JSON document.","status":"published","published":"2022-05-17T04:43:13Z","modified":"2023-01-28T05:02:13Z","updated_at":"2026-11-02T14:43:44.460546Z"}],"nvd":[{"id":"CVE-2013-6401","description":"Jansson, possibly 2.4 and earlier, does not restrict the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted JSON document.","status":"published","published":"2014-03-21T01:04:00.623Z","modified":"2026-06-17T00:00:25.37Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-310"],"updated_at":"2026-11-02T14:02:50.049023Z"}],"osv":[{"id":"CVE-2013-6401","description":"Jansson, possibly 2.4 and earlier, does not restrict the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted JSON document.","status":"published","published":"2014-03-21T01:04:00Z","modified":"2026-04-10T03:43:06.956964Z","updated_at":"2026-11-02T15:43:59.361892Z"},{"id":"DEBIAN-CVE-2013-6401","description":"Jansson, possibly 2.4 and earlier, does not restrict the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted JSON document.","status":"published","published":"2014-03-21T01:04:00.623Z","modified":"2026-09-01T20:02:14.905325813Z","updated_at":"2026-11-02T15:45:25.819707Z"},{"id":"openSUSE-SU-2024:10331-1","title":"libjansson-devel-2.7-1.9 on GA media","description":"These are all security issues fixed in the libjansson-devel-2.7-1.9 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T02:59:16.546086Z","updated_at":"2026-11-02T16:58:34.487567Z"},{"id":"UBUNTU-CVE-2013-6401","description":"Jansson, possibly 2.4 and earlier, does not restrict the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted JSON document.","status":"published","published":"2014-03-21T01:04:00Z","modified":"2026-04-22T09:25:24.040423Z","updated_at":"2026-11-02T15:54:07.421078Z"}]}}