{"id":"CVE-2026-78323","aliases":["DEBIAN-CVE-2026-78323","EUVD-2026-64826","GHSA-vc6r-2f9f-w5j6","OESA-2026-4134","OESA-2026-4135","OESA-2026-4136","OESA-2026-4137","UBUNTU-CVE-2026-78323"],"status":"published","title":"Jss: jss: jsstrustmanager does not verify nss trust flags on ca certificates","description":"A flaw was found in JSS (Java Security Services). The JSSTrustManager class does not verify NSS trust flags when validating CA certificates, allowing certificates present in the NSS database without TRUSTED_CA flags to be accepted as trust anchors for TLS connections. In non-default configurations where certificate revocation checking is disabled, this could allow a man-in-the-middle attacker to forge certificates accepted by PKI client connections.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00176,"percentile":0.0721,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-295"],"published":"2026-08-24T11:11:01Z","modified":"2026-11-06T00:54:00Z","fixes":[{"ecosystem":"openEuler:24.03-LTS-SP4","package":"jss","fixed_in":["5.4.2-3.oe2403sp4"],"sources":["osv"]},{"ecosystem":"openEuler:22.03-LTS-SP4","package":"jss","fixed_in":["5.1.0-4.oe2203sp4"],"sources":["osv"]},{"ecosystem":"openEuler:24.03-LTS-SP1","package":"jss","fixed_in":["5.4.2-3.oe2403sp1"],"sources":["osv"]},{"ecosystem":"openEuler:24.03-LTS-SP3","package":"jss","fixed_in":["5.4.2-3.oe2403sp3"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"jss","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.10.1-1","5.3.0-1","5.4.0-1","5.4.2-1","5.5.0-1","5.9.0~beta3-1","5.9.0~beta3-2","5.9.0~beta3-3","5.9.0~beta3-4"]},{"source":"osv","ecosystem":"Debian:14","package":"jss","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.1-4","4.3.1-5","4.3.1-6","4.3.1-7","4.4.2-1","4.4.2-2","4.4.2-3","4.4.2-4","4.4.2-5","4.4.2-6","4.4.3-1","4.4.4-1","4.5.0-1","4.5.0~a4-1","4.5.1-1","4.5.3-1","4.5.3-2","4.6.0-1","4.6.1-1","4.6.1-2","4.6.1-3","4.6.2-1","4.6.3-1","4.7.0-1","4.7.0~b1-1","4.7.0~b4-1","4.7.0~b4-2","4.7.1-1","4.7.2-1","4.7.3-1","4.8.0-1","4.8.0-2","4.9.1-1","5.0.0-1","5.1.0-1","5.10.1-1","5.2.0-1","5.3.0-1","5.4.0-1","5.4.2-1","5.5.0-1","5.9.0~beta3-1","5.9.0~beta3-2","5.9.0~beta3-3","5.9.0~beta3-4"]},{"source":"osv","ecosystem":"openEuler:24.03-LTS-SP4","package":"jss","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.2-3.oe2403sp4"}]}]},{"source":"osv","ecosystem":"openEuler:22.03-LTS-SP4","package":"jss","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.1.0-4.oe2203sp4"}]}]},{"source":"osv","ecosystem":"openEuler:24.03-LTS-SP1","package":"jss","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.2-3.oe2403sp1"}]}]},{"source":"osv","ecosystem":"openEuler:24.03-LTS-SP3","package":"jss","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.2-3.oe2403sp3"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"jss","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.1-6"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"jss","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.2-1","4.4.2-2","4.4.2-3","4.4.2-6","4.4.3-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"jss","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.6.1-3","4.6.2-1","4.6.3-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"jss","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.8.0-2","5.0.0-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"jss","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.2-1","5.5.0-1","5.5.0-1build1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"jss","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.9.0~beta3-3ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"jss","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.5.0-1build1","5.9.0~beta3-3ubuntu1"]}],"products":[{"vendor":"red hat","product":"red hat certificate system 10"},{"vendor":"red hat","product":"red hat certificate system 11"},{"vendor":"red hat","product":"red hat enterprise linux 10"},{"vendor":"red hat","product":"red hat enterprise linux 6"},{"vendor":"red hat","product":"red hat enterprise linux 7"},{"vendor":"red hat","product":"red hat enterprise linux 8"},{"vendor":"red hat","product":"red hat enterprise linux 9"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-78323","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2521775","tags":["issue-tracking","x_refsource_REDHAT","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78323","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-vc6r-2f9f-w5j6"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-78323","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4134","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4135","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4136","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4137","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-78323","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-78323","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-78323","title":"Jss: jss: jsstrustmanager does not verify nss trust flags on ca certificates","description":"A flaw was found in JSS (Java Security Services). The JSSTrustManager class does not verify NSS trust flags when validating CA certificates, allowing certificates present in the NSS database without TRUSTED_CA flags to be accepted as trust anchors for TLS connections. In non-default configurations where certificate revocation checking is disabled, this could allow a man-in-the-middle attacker to forge certificates accepted by PKI client connections.","status":"published","published":"2026-08-24T11:11:01.343Z","modified":"2026-11-06T00:54:00.349Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-295"],"updated_at":"2026-11-06T01:55:46.939755Z"}],"euvd":[{"id":"EUVD-2026-64826","description":"A flaw was found in JSS (Java Security Services). The JSSTrustManager class does not verify NSS trust flags when validating CA certificates, allowing certificates present in the NSS database without TRUSTED_CA flags to be accepted as trust anchors for TLS connections. In non-default configurations where certificate revocation checking is disabled, this could allow a man-in-the-middle attacker to forge certificates accepted by PKI client connections.","status":"published","published":"2026-08-24T11:11:01Z","modified":"2026-11-06T00:54:00Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"medium"}],"updated_at":"2026-11-06T02:02:53.341523Z"}],"ghsa":[{"id":"GHSA-vc6r-2f9f-w5j6","title":"A flaw was found in JSS (Java Security Services). The JSSTrustManager class does not verify NSS...","description":"A flaw was found in JSS (Java Security Services). The JSSTrustManager class does not verify NSS trust flags when validating CA certificates, allowing certificates present in the NSS database without TRUSTED_CA flags to be accepted as trust anchors for TLS connections. In non-default configurations where certificate revocation checking is disabled, this could allow a man-in-the-middle attacker to forge certificates accepted by PKI client connections.","status":"published","published":"2026-08-24T12:31:40Z","modified":"2026-08-24T12:31:46Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"medium"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T15:10:53.487857Z"}],"nvd":[{"id":"CVE-2026-78323","description":"A flaw was found in JSS (Java Security Services). The JSSTrustManager class does not verify NSS trust flags when validating CA certificates, allowing certificates present in the NSS database without TRUSTED_CA flags to be accepted as trust anchors for TLS connections. In non-default configurations where certificate revocation checking is disabled, this could allow a man-in-the-middle attacker to forge certificates accepted by PKI client connections.","status":"published","published":"2026-08-24T12:16:56.25Z","modified":"2026-11-06T01:17:52.287Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-295"],"updated_at":"2026-11-06T06:59:04.972571Z"}],"osv":[{"id":"DEBIAN-CVE-2026-78323","description":"A flaw was found in JSS (Java Security Services). The JSSTrustManager class does not verify NSS trust flags when validating CA certificates, allowing certificates present in the NSS database without TRUSTED_CA flags to be accepted as trust anchors for TLS connections. In non-default configurations where certificate revocation checking is disabled, this could allow a man-in-the-middle attacker to forge certificates accepted by PKI client connections.","status":"published","published":"2026-08-24T12:16:56.25Z","modified":"2026-10-15T09:47:32.369304222Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:46:03.502256Z"},{"id":"OESA-2026-4134","title":"jss security update","description":"Java Security Services (JSS) is a java native interface which provides a bridge for java-based applications to use native Network Security Services (NSS). This only works with gcj. Other JREs require that JCE providers be signed.\r\n\r\nSecurity Fix(es):\n\nA flaw was found in JSS (Java Security Services). The JSSTrustManager class does not verify NSS trust flags when validating CA certificates, allowing certificates present in the NSS database without TRUSTED_CA flags to be accepted as trust anchors for TLS connections. In non-default configurations where certificate revocation checking is disabled, this could allow a man-in-the-middle attacker to forge certificates accepted by PKI client connections.(CVE-2026-78323)","status":"published","published":"2026-09-30T13:46:55Z","modified":"2026-10-01T02:00:04.750687872Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:52:47.643553Z"},{"id":"OESA-2026-4135","title":"jss security update","description":"Java Security Services (JSS) is a java native interface which provides a bridge for java-based applications to use native Network Security Services (NSS). This only works with gcj. Other JREs require that JCE providers be signed.\r\n\r\nSecurity Fix(es):\n\nA flaw was found in JSS (Java Security Services). The JSSTrustManager class does not verify NSS trust flags when validating CA certificates, allowing certificates present in the NSS database without TRUSTED_CA flags to be accepted as trust anchors for TLS connections. In non-default configurations where certificate revocation checking is disabled, this could allow a man-in-the-middle attacker to forge certificates accepted by PKI client connections.(CVE-2026-78323)","status":"published","published":"2026-09-30T13:46:56Z","modified":"2026-10-01T02:00:04.730037181Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:52:47.643553Z"},{"id":"OESA-2026-4136","title":"jss security update","description":"Java Security Services (JSS) is a java native interface which provides a bridge for java-based applications to use native Network Security Services (NSS). This only works with gcj. Other JREs require that JCE providers be signed.\r\n\r\nSecurity Fix(es):\n\nA flaw was found in JSS (Java Security Services). The JSSTrustManager class does not verify NSS trust flags when validating CA certificates, allowing certificates present in the NSS database without TRUSTED_CA flags to be accepted as trust anchors for TLS connections. In non-default configurations where certificate revocation checking is disabled, this could allow a man-in-the-middle attacker to forge certificates accepted by PKI client connections.(CVE-2026-78323)","status":"published","published":"2026-09-30T13:46:57Z","modified":"2026-10-01T02:00:04.730065976Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:52:47.643553Z"},{"id":"OESA-2026-4137","title":"jss security update","description":"Java Security Services (JSS) is a java native interface which provides a bridge for java-based applications to use native Network Security Services (NSS). This only works with gcj. Other JREs require that JCE providers be signed.\r\n\r\nSecurity Fix(es):\n\nA flaw was found in JSS (Java Security Services). The JSSTrustManager class does not verify NSS trust flags when validating CA certificates, allowing certificates present in the NSS database without TRUSTED_CA flags to be accepted as trust anchors for TLS connections. In non-default configurations where certificate revocation checking is disabled, this could allow a man-in-the-middle attacker to forge certificates accepted by PKI client connections.(CVE-2026-78323)","status":"published","published":"2026-09-30T13:46:57Z","modified":"2026-10-01T02:00:03.591988608Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:52:47.643553Z"},{"id":"UBUNTU-CVE-2026-78323","description":"A flaw was found in JSS (Java Security Services). The JSSTrustManager class does not verify NSS trust flags when validating CA certificates, allowing certificates present in the NSS database without TRUSTED_CA flags to be accepted as trust anchors for TLS connections. In non-default configurations where certificate revocation checking is disabled, this could allow a man-in-the-middle attacker to forge certificates accepted by PKI client connections.","status":"published","published":"2026-08-24T12:16:00Z","modified":"2026-10-17T13:01:09.620148044Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T16:57:18.015985Z"}]}}