{"id":"CVE-2025-27110","aliases":["BIT-modsecurity-2025-27110","BIT-modsecurity2-2025-27110","DEBIAN-CVE-2025-27110","EUVD-2025-5324","GHSA-42w7-rmv5-4x2j","UBUNTU-CVE-2025-27110","openSUSE-SU-2025:14946-1"],"status":"published","title":"Libmodsecurity3 has possible bypass of encoded HTML entities","description":"Libmodsecurity is one component of the ModSecurity v3 project. The library codebase serves as an interface to ModSecurity Connectors taking in web traffic and applying traditional ModSecurity processing. A bug that exists only in Libmodsecurity3 version 3.0.13 means that, in 3.0.13, Libmodsecurity3 can't decode encoded HTML entities if they contains leading zeroes. Version 3.0.14 contains a fix. No known workarounds are available.","severity":{"version":"4.0","score":7.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00485,"percentile":0.42119,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-172"],"published":"2025-02-25T20:00:44Z","modified":"2026-10-28T02:30:37Z","fixes":[{"ecosystem":"Bitnami","package":"modsecurity","fixed_in":["3.0.14"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"modsecurity","fixed_in":["3.0.14-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"modsecurity","fixed_in":["3.0.14-1"],"sources":["osv"]},{"ecosystem":"openSUSE:Tumbleweed","package":"modsecurity","fixed_in":["3.0.14-1.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"modsecurity","ranges":[{"type":"SEMVER","events":[{"introduced":"3.0.13"},{"fixed":"3.0.14"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"modsecurity2","ranges":[{"type":"SEMVER","events":[{"introduced":"3.0.13"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"modsecurity","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.14-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"modsecurity","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.14-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"modsecurity","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.3-1","3.0.4-1","3.0.4-1build1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"modsecurity","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.4-2","3.0.6-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"modsecurity","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.10-1","3.0.11-1","3.0.12-1","3.0.12-1.1build1","3.0.12-1.1build2"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"modsecurity","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.13-1","3.0.14-1","3.0.14-1build1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"modsecurity","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.14-1build2","3.0.15-1","3.0.16-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"modsecurity","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.14-1build1","3.0.14-1build2"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"modsecurity","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.14-1.1"}]}]}],"products":[{"vendor":"owasp-modsecurity","product":"modsecurity"},{"vendor":"trustwave","product":"modsecurity"}],"references":[{"url":"https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-42w7-rmv5-4x2j","tags":["x_refsource_CONFIRM","Vendor Advisory","advisory","report"]},{"url":"https://github.com/owasp-modsecurity/ModSecurity/issues/3340","tags":["x_refsource_MISC","Exploit","Issue Tracking","evidence","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-27110","tags":["web","advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/27xxx/CVE-2025-27110.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2025-27110","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2025-27110","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-27110","tags":["report"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/GA6CQ6PAGPDDZZQONRAGSFIF4ZQCF3FK/","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2025-27110","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2025-27110","title":"Libmodsecurity3 has possible bypass of encoded HTML entities","description":"Libmodsecurity is one component of the ModSecurity v3 project. The library codebase serves as an interface to ModSecurity Connectors taking in web traffic and applying traditional ModSecurity processing. A bug that exists only in Libmodsecurity3 version 3.0.13 means that, in 3.0.13, Libmodsecurity3 can't decode encoded HTML entities if they contains leading zeroes. Version 3.0.14 contains a fix. No known workarounds are available.","status":"published","published":"2025-02-25T20:00:44.211Z","modified":"2025-02-26T16:38:15.284Z","cvss":[{"version":"4.0","score":7.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","level":"high","assessor":"cna"}],"cwes":["CWE-172"],"updated_at":"2026-11-02T14:32:42.751171Z"}],"euvd":[{"id":"EUVD-2025-5324","description":"Libmodsecurity is one component of the ModSecurity v3 project. The library codebase serves as an interface to ModSecurity Connectors taking in web traffic and applying traditional ModSecurity processing. A bug that exists only in Libmodsecurity3 version 3.0.13 means that, in 3.0.13, Libmodsecurity3 can't decode encoded HTML entities if they contains leading zeroes. Version 3.0.14 contains a fix. No known workarounds are available.","status":"published","published":"2025-02-25T20:00:44Z","modified":"2025-02-26T16:38:15Z","cvss":[{"version":"4.0","score":7.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","level":"high"}],"updated_at":"2026-11-02T20:53:23.257772Z"}],"nvd":[{"id":"CVE-2025-27110","description":"Libmodsecurity is one component of the ModSecurity v3 project. The library codebase serves as an interface to ModSecurity Connectors taking in web traffic and applying traditional ModSecurity processing. A bug that exists only in Libmodsecurity3 version 3.0.13 means that, in 3.0.13, Libmodsecurity3 can't decode encoded HTML entities if they contains leading zeroes. Version 3.0.14 contains a fix. No known workarounds are available.","status":"published","published":"2025-02-25T20:15:37.517Z","modified":"2026-06-17T09:03:03.263Z","cvss":[{"version":"4.0","score":7.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-172"],"updated_at":"2026-11-02T14:10:51.871789Z"}],"osv":[{"id":"CVE-2025-27110","title":"Libmodsecurity3 has possible bypass of encoded HTML entities","description":"Libmodsecurity is one component of the ModSecurity v3 project. The library codebase serves as an interface to ModSecurity Connectors taking in web traffic and applying traditional ModSecurity processing. A bug that exists only in Libmodsecurity3 version 3.0.13 means that, in 3.0.13, Libmodsecurity3 can't decode encoded HTML entities if they contains leading zeroes. Version 3.0.14 contains a fix. No known workarounds are available.","status":"published","published":"2025-02-25T20:00:44.211Z","modified":"2026-10-28T02:30:37.817222156Z","cvss":[{"version":"4.0","score":7.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","level":"high"}],"cwes":["CWE-172"],"updated_at":"2026-11-02T15:44:47.386092Z"},{"id":"DEBIAN-CVE-2025-27110","description":"Libmodsecurity is one component of the ModSecurity v3 project. The library codebase serves as an interface to ModSecurity Connectors taking in web traffic and applying traditional ModSecurity processing. A bug that exists only in Libmodsecurity3 version 3.0.13 means that, in 3.0.13, Libmodsecurity3 can't decode encoded HTML entities if they contains leading zeroes. Version 3.0.14 contains a fix. No known workarounds are available.","status":"published","published":"2025-02-25T20:15:37.517Z","modified":"2026-09-01T20:05:45.043813182Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:45:45.870237Z"},{"id":"UBUNTU-CVE-2025-27110","description":"Libmodsecurity is one component of the ModSecurity v3 project. The library codebase serves as an interface to ModSecurity Connectors taking in web traffic and applying traditional ModSecurity processing. A bug that exists only in Libmodsecurity3 version 3.0.13 means that, in 3.0.13, Libmodsecurity3 can't decode encoded HTML entities if they contains leading zeroes. Version 3.0.14 contains a fix. No known workarounds are available.","status":"published","published":"2025-02-25T20:15:00Z","modified":"2026-10-17T12:56:49.50557192Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"},{"version":"4.0","score":7.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","level":"high"}],"updated_at":"2026-11-02T16:55:26.330196Z"},{"id":"BIT-modsecurity-2025-27110","title":"Libmodsecurity3 has possible bypass of encoded HTML entities","description":"Libmodsecurity is one component of the ModSecurity v3 project. The library codebase serves as an interface to ModSecurity Connectors taking in web traffic and applying traditional ModSecurity processing. A bug that exists only in Libmodsecurity3 version 3.0.13 means that, in 3.0.13, Libmodsecurity3 can't decode encoded HTML entities if they contains leading zeroes. Version 3.0.14 contains a fix. No known workarounds are available.","status":"published","published":"2025-03-07T20:58:41.959Z","modified":"2026-09-08T08:48:13.965043485Z","updated_at":"2026-11-02T15:28:33.072289Z"},{"id":"BIT-modsecurity2-2025-27110","title":"Libmodsecurity3 has possible bypass of encoded HTML entities","description":"Libmodsecurity is one component of the ModSecurity v3 project. The library codebase serves as an interface to ModSecurity Connectors taking in web traffic and applying traditional ModSecurity processing. A bug that exists only in Libmodsecurity3 version 3.0.13 means that, in 3.0.13, Libmodsecurity3 can't decode encoded HTML entities if they contains leading zeroes. Version 3.0.14 contains a fix. No known workarounds are available.","status":"published","published":"2025-03-07T20:58:44.656Z","modified":"2026-09-08T08:48:14.010015317Z","updated_at":"2026-11-02T15:28:33.072289Z"},{"id":"openSUSE-SU-2025:14946-1","title":"libmodsecurity3-3.0.14-1.1 on GA media","description":"These are all security issues fixed in the libmodsecurity3-3.0.14-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2025-03-31T00:00:00Z","modified":"2026-02-04T03:33:07.685373Z","updated_at":"2026-11-02T16:58:37.399567Z"}]}}