{"id":"CVE-2026-95616","aliases":["DEBIAN-CVE-2026-95616","EUVD-2026-89801","GHSA-9gjf-54jg-6353","UBUNTU-CVE-2026-95616"],"status":"published","title":"Apache WSS4J: Unauthenticated denial of service via integer overflow in DER parsing of X.509 certificate extensions","description":"An integer overflow in WSS4J's DER bounds check lets an oversized allocation pass validation. An unauthenticated attacker can send a SOAP message carrying an X.509 certificate whose SubjectKeyIdentifier extension declares a length of 0x7FFFFFFF; WSS4J decodes this while resolving the signature's key reference, before the message is authenticated, so an eleven-byte extension triggers a 2 GB allocation. Repeated requests exhaust server memory.\nUsers are recommended to upgrade to versions 4.0.2 or 3.0.6 or 2.4.4, which fix this issue.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-09","score":0.00409,"percentile":0.35435,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-190"],"published":"2026-09-30T12:25:28Z","modified":"2026-10-17T13:01:19Z","affected":[{"source":"osv","ecosystem":"Debian:12","package":"wss4j","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.19-3","1.6.19-4"]},{"source":"osv","ecosystem":"Debian:13","package":"wss4j","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.19-4"]},{"source":"osv","ecosystem":"Debian:14","package":"wss4j","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.19-4"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"wss4j","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.15-2"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"wss4j","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.19-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"wss4j","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.19-2"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"wss4j","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.19-2"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"wss4j","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.19-3"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"wss4j","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.19-4build1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"wss4j","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.19-4","1.6.19-4build1"]}],"products":[{"vendor":"apache","product":"wss4j"},{"vendor":"apache software foundation","product":"apache wss4j"}],"references":[{"url":"https://lists.apache.org/thread.html/sdf0fsphkg4qbj7nh2brjgwvcmd67hct","tags":["vendor-advisory","Vendor Advisory","Mailing List","report"]},{"url":"http://www.openwall.com/lists/oss-security/2026/09/30/14","tags":["Mailing List","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-95616"},{"url":"https://github.com/advisories/GHSA-9gjf-54jg-6353"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-95616","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-95616","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-95616","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-95616","title":"Apache WSS4J: Unauthenticated denial of service via integer overflow in DER parsing of X.509 certificate extensions","description":"An integer overflow in WSS4J's DER bounds check lets an oversized allocation pass validation. An unauthenticated attacker can send a SOAP message carrying an X.509 certificate whose SubjectKeyIdentifier extension declares a length of 0x7FFFFFFF; WSS4J decodes this while resolving the signature's key reference, before the message is authenticated, so an eleven-byte extension triggers a 2 GB allocation. Repeated requests exhaust server memory.\nUsers are recommended to upgrade to versions 4.0.2 or 3.0.6 or 2.4.4, which fix this issue.","status":"published","published":"2026-09-30T12:25:28.399Z","modified":"2026-09-30T13:17:31.672Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:20:05.505362Z"}],"euvd":[{"id":"EUVD-2026-89801","description":"An integer overflow in WSS4J's DER bounds check lets an oversized allocation pass validation. An unauthenticated attacker can send a SOAP message carrying an X.509 certificate whose SubjectKeyIdentifier extension declares a length of 0x7FFFFFFF; WSS4J decodes this while resolving the signature's key reference, before the message is authenticated, so an eleven-byte extension triggers a 2 GB allocation. Repeated requests exhaust server memory.\nUsers are recommended to upgrade to versions 4.0.2 or 3.0.6 or 2.4.4, which fix this issue.","status":"published","published":"2026-09-30T12:25:28Z","modified":"2026-09-30T13:17:31Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T17:27:50.183381Z"}],"ghsa":[{"id":"GHSA-9gjf-54jg-6353","title":"An integer overflow in WSS4J's DER bounds check lets an oversized allocation pass validation. An...","description":"An integer overflow in WSS4J's DER bounds check lets an oversized allocation pass validation. An unauthenticated attacker can send a SOAP message carrying an X.509 certificate whose SubjectKeyIdentifier extension declares a length of 0x7FFFFFFF; WSS4J decodes this while resolving the signature's key reference, before the message is authenticated, so an eleven-byte extension triggers a 2 GB allocation. Repeated requests exhaust server memory.\nUsers are recommended to upgrade to versions 4.0.2 or 3.0.6 or 2.4.4, which fix this issue.","status":"published","published":"2026-09-30T15:31:27Z","modified":"2026-09-30T15:31:28Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T15:12:36.462442Z"}],"nvd":[{"id":"CVE-2026-95616","description":"An integer overflow in WSS4J's DER bounds check lets an oversized allocation pass validation. An unauthenticated attacker can send a SOAP message carrying an X.509 certificate whose SubjectKeyIdentifier extension declares a length of 0x7FFFFFFF; WSS4J decodes this while resolving the signature's key reference, before the message is authenticated, so an eleven-byte extension triggers a 2 GB allocation. Repeated requests exhaust server memory.\nUsers are recommended to upgrade to versions 4.0.2 or 3.0.6 or 2.4.4, which fix this issue.","status":"published","published":"2026-09-30T13:17:28.863Z","modified":"2026-10-06T17:21:33.233Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:12:52.759595Z"}],"osv":[{"id":"DEBIAN-CVE-2026-95616","description":"An integer overflow in WSS4J's DER bounds check lets an oversized allocation pass validation. An unauthenticated attacker can send a SOAP message carrying an X.509 certificate whose SubjectKeyIdentifier extension declares a length of 0x7FFFFFFF; WSS4J decodes this while resolving the signature's key reference, before the message is authenticated, so an eleven-byte extension triggers a 2 GB allocation. Repeated requests exhaust server memory. Users are recommended to upgrade to versions 4.0.2 or 3.0.6 or 2.4.4, which fix this issue.","status":"published","published":"2026-09-30T13:17:28.863Z","modified":"2026-10-07T09:47:39.413765449Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:46:07.324252Z"},{"id":"UBUNTU-CVE-2026-95616","description":"An integer overflow in WSS4J's DER bounds check lets an oversized allocation pass validation. An unauthenticated attacker can send a SOAP message carrying an X.509 certificate whose SubjectKeyIdentifier extension declares a length of 0x7FFFFFFF; WSS4J decodes this while resolving the signature's key reference, before the message is authenticated, so an eleven-byte extension triggers a 2 GB allocation. Repeated requests exhaust server memory. Users are recommended to upgrade to versions 4.0.2 or 3.0.6 or 2.4.4, which fix this issue.","status":"published","published":"2026-09-30T13:17:00Z","modified":"2026-10-17T13:01:19.546994841Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T16:57:44.071534Z"}]}}