{"id":"CVE-2026-90463","aliases":["DEBIAN-CVE-2026-90463","EUVD-2026-77592","GHSA-p4x8-43x8-6hqq","SUSE-SU-2026:5079-1","UBUNTU-CVE-2026-90463"],"status":"published","title":"Sssd: local oob read in nss service request parsers (`sss_nss_protocol_parse_svc_name` / `sss_nss_protocol_parse_svc_port`)","description":"A flaw was found in the sssd NSS responder. This input validation vulnerability allows a local attacker, by sending specially crafted service lookup requests to the NSS responder's UNIX socket, to cause an out-of-bounds read. This out-of-bounds read may lead to a denial of service (DoS) by crashing the NSS responder process. While unprivileged local clients can typically reach the socket, there is no evidence of privilege escalation or reliable data disclosure.","severity":{"version":"3.1","score":4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.0015,"percentile":0.0418,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2026-09-14T15:21:01Z","modified":"2026-11-07T10:01:55Z","affected":[{"source":"osv","ecosystem":"Debian:12","package":"sssd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.10.1-1","2.10.1-2","2.11.1-1","2.11.1-2","2.11.1-2.1","2.12.0-1","2.12.0-2","2.12.0-3~exp0","2.12.0-4","2.13.1-1","2.13.1-2","2.13.1-3","2.13.1-4","2.8.2-4","2.8.2-4+deb12u1","2.9.1-1","2.9.1-2","2.9.2-1","2.9.4-1","2.9.4-1.1","2.9.4-1.1~exp1","2.9.4-2","2.9.5-1","2.9.5-2","2.9.5-3","2.9.5-4","2.9.5-5"]},{"source":"osv","ecosystem":"Debian:13","package":"sssd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.10.1-2","2.11.1-1","2.11.1-2","2.11.1-2.1","2.12.0-1","2.12.0-2","2.12.0-3~exp0","2.12.0-4","2.13.1-1","2.13.1-2","2.13.1-3","2.13.1-4"]},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 15 SP6-LTSS","package":"sssd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.10.2-150600.3.58.1"}]}],"bundled":19},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15 SP6","package":"sssd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.10.2-150600.3.58.1"}]}],"bundled":19},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"sssd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.12.5-2","1.13.1-2","1.13.2-1","1.13.3-1","1.13.4-1","1.13.4-1ubuntu1","1.13.4-1ubuntu1.1","1.13.4-1ubuntu1.2","1.13.4-1ubuntu1.5","1.13.4-1ubuntu1.6","1.13.4-1ubuntu1.7","1.13.4-1ubuntu1.8","1.13.4-1ubuntu1.9","1.13.4-1ubuntu1.10","1.13.4-1ubuntu1.11","1.13.4-1ubuntu1.12","1.13.4-1ubuntu1.13","1.13.4-1ubuntu1.14","1.13.4-1ubuntu1.15","1.13.4-1ubuntu1.15+esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"sssd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.15.3-2ubuntu1","1.15.3-3ubuntu1","1.16.0-5ubuntu1","1.16.0-5ubuntu2","1.16.1-1ubuntu1","1.16.1-1ubuntu1.1","1.16.1-1ubuntu1.2","1.16.1-1ubuntu1.3","1.16.1-1ubuntu1.4","1.16.1-1ubuntu1.5","1.16.1-1ubuntu1.6","1.16.1-1ubuntu1.7","1.16.1-1ubuntu1.8","1.16.1-1ubuntu1.8+esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"sssd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.0-4ubuntu1","2.2.2-1","2.2.2-1ubuntu1","2.2.3-1.1ubuntu1","2.2.3-2","2.2.3-3","2.2.3-3ubuntu0.1","2.2.3-3ubuntu0.2","2.2.3-3ubuntu0.3","2.2.3-3ubuntu0.4","2.2.3-3ubuntu0.6","2.2.3-3ubuntu0.7","2.2.3-3ubuntu0.8","2.2.3-3ubuntu0.9","2.2.3-3ubuntu0.10","2.2.3-3ubuntu0.11","2.2.3-3ubuntu0.12","2.2.3-3ubuntu0.13","2.2.3-3ubuntu0.13+esm1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"sssd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.1-2ubuntu4","2.5.2-4ubuntu1","2.5.2-4ubuntu3","2.5.2-4ubuntu4","2.6.1-1ubuntu3","2.6.3-1ubuntu3","2.6.3-1ubuntu3.1","2.6.3-1ubuntu3.2","2.6.3-1ubuntu3.3","2.6.3-1ubuntu3.4","2.6.3-1ubuntu3.5","2.6.3-1ubuntu3.6","2.6.3-1ubuntu3.8","2.6.3-1ubuntu3.9"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"sssd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.9.1-2ubuntu2","2.9.1-2ubuntu3","2.9.2-1ubuntu2","2.9.4-1ubuntu1","2.9.4-1.1ubuntu3","2.9.4-1.1ubuntu5","2.9.4-1.1ubuntu6","2.9.4-1.1ubuntu6.1","2.9.4-1.1ubuntu6.2","2.9.4-1.1ubuntu6.3","2.9.4-1.1ubuntu6.4","2.9.4-1.1ubuntu6.5","2.9.4-1.1ubuntu6.6","2.9.4-1.1ubuntu6.7","2.9.4-1.1ubuntu6.8"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"sssd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.12.0-1ubuntu5","2.12.0-4ubuntu1","2.12.0-4ubuntu2","2.12.0-4ubuntu3","2.12.0-4ubuntu4"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"sssd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.10.1-2ubuntu5","2.10.1-2ubuntu7","2.12.0-1ubuntu3","2.12.0-1ubuntu4","2.12.0-1ubuntu5","2.12.0-1ubuntu5.1","2.12.0-1ubuntu5.2","2.12.0-1ubuntu5.3","2.12.0-1ubuntu5.4","2.12.0-1ubuntu5.5"]}],"products":[{"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"},{"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-2026-90463","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2479268","tags":["issue-tracking","x_refsource_REDHAT","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90463"},{"url":"https://github.com/advisories/GHSA-p4x8-43x8-6hqq"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-90463","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-20265079-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1269807","tags":["report"]},{"url":"https://bugzilla.suse.com/1273009","tags":["report"]},{"url":"https://bugzilla.suse.com/1273922","tags":["report"]},{"url":"https://bugzilla.suse.com/1273924","tags":["report"]},{"url":"https://bugzilla.suse.com/1273925","tags":["report"]},{"url":"https://bugzilla.suse.com/1280360","tags":["report"]},{"url":"https://bugzilla.suse.com/1280361","tags":["report"]},{"url":"https://bugzilla.suse.com/1280362","tags":["report"]},{"url":"https://bugzilla.suse.com/1280363","tags":["report"]},{"url":"https://bugzilla.suse.com/1282584","tags":["report"]},{"url":"https://bugzilla.suse.com/1284266","tags":["report"]},{"url":"https://bugzilla.suse.com/1284314","tags":["report"]},{"url":"https://bugzilla.suse.com/1284316","tags":["report"]},{"url":"https://bugzilla.suse.com/1284318","tags":["report"]},{"url":"https://bugzilla.suse.com/1284321","tags":["report"]},{"url":"https://bugzilla.suse.com/1284322","tags":["report"]},{"url":"https://bugzilla.suse.com/1284323","tags":["report"]},{"url":"https://bugzilla.suse.com/1284324","tags":["report"]},{"url":"https://bugzilla.suse.com/1284326","tags":["report"]},{"url":"https://bugzilla.suse.com/1284470","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2026-104029","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-104031","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-104033","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-104036","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-104037","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-104038","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-104039","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-104043","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-104045","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12610","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-68742","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-68743","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-68744","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-90462","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-90463","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-90994","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-90995","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-90996","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-92821","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2026-90463","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90463","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-90463","title":"Sssd: local oob read in nss service request parsers (`sss_nss_protocol_parse_svc_name` / `sss_nss_protocol_parse_svc_port`)","description":"A flaw was found in the sssd NSS responder. This input validation vulnerability allows a local attacker, by sending specially crafted service lookup requests to the NSS responder's UNIX socket, to cause an out-of-bounds read. This out-of-bounds read may lead to a denial of service (DoS) by crashing the NSS responder process. While unprivileged local clients can typically reach the socket, there is no evidence of privilege escalation or reliable data disclosure.","status":"published","published":"2026-09-14T15:21:01.029Z","modified":"2026-11-07T11:32:15.122Z","cvss":[{"version":"3.1","score":4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-125"],"updated_at":"2026-11-07T12:33:58.735172Z"}],"euvd":[{"id":"EUVD-2026-77592","description":"A flaw was found in the sssd NSS responder. This input validation vulnerability allows a local attacker, by sending specially crafted service lookup requests to the NSS responder's UNIX socket, to cause an out-of-bounds read. This out-of-bounds read may lead to a denial of service (DoS) by crashing the NSS responder process. While unprivileged local clients can typically reach the socket, there is no evidence of privilege escalation or reliable data disclosure.","status":"published","published":"2026-09-14T15:21:01Z","modified":"2026-11-07T11:32:15Z","cvss":[{"version":"3.1","score":4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-06T21:07:00.111123Z"}],"ghsa":[{"id":"GHSA-p4x8-43x8-6hqq","title":"A flaw was found in the sssd NSS responder. This input validation vulnerability allows a local...","description":"A flaw was found in the sssd NSS responder. This input validation vulnerability allows a local attacker, by sending specially crafted service lookup requests to the NSS responder's UNIX socket, to cause an out-of-bounds read. This out-of-bounds read may lead to a denial of service (DoS) by crashing the NSS responder process. While unprivileged local clients can typically reach the socket, there is no evidence of privilege escalation or reliable data disclosure.","status":"published","published":"2026-09-14T18:31:20Z","modified":"2026-09-14T18:31:21Z","cvss":[{"version":"3.1","score":4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:11:51.662242Z"}],"nvd":[{"id":"CVE-2026-90463","description":"A flaw was found in the sssd NSS responder. This input validation vulnerability allows a local attacker, by sending specially crafted service lookup requests to the NSS responder's UNIX socket, to cause an out-of-bounds read. This out-of-bounds read may lead to a denial of service (DoS) by crashing the NSS responder process. While unprivileged local clients can typically reach the socket, there is no evidence of privilege escalation or reliable data disclosure.","status":"published","published":"2026-09-14T16:17:23.4Z","modified":"2026-11-06T20:17:28.28Z","cvss":[{"version":"3.1","score":4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-125"],"updated_at":"2026-11-06T22:02:13.634375Z"}],"osv":[{"id":"DEBIAN-CVE-2026-90463","description":"A flaw was found in the sssd NSS responder. This input validation vulnerability allows a local attacker, by sending specially crafted service lookup requests to the NSS responder's UNIX socket, to cause an out-of-bounds read. This out-of-bounds read may lead to a denial of service (DoS) by crashing the NSS responder process. While unprivileged local clients can typically reach the socket, there is no evidence of privilege escalation or reliable data disclosure.","status":"published","published":"2026-09-14T16:17:23.4Z","modified":"2026-11-07T10:01:55.088510375Z","cvss":[{"version":"3.1","score":4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-07T10:13:34.340634Z"},{"id":"UBUNTU-CVE-2026-90463","description":"A flaw was found in the sssd NSS responder. This input validation vulnerability allows a local attacker, by sending specially crafted service lookup requests to the NSS responder's UNIX socket, to cause an out-of-bounds read. This out-of-bounds read may lead to a denial of service (DoS) by crashing the NSS responder process. While unprivileged local clients can typically reach the socket, there is no evidence of privilege escalation or reliable data disclosure.","status":"published","published":"2026-09-14T16:17:00Z","modified":"2026-10-17T13:01:16.687278972Z","cvss":[{"version":"3.1","score":4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T16:57:35.676249Z"},{"id":"SUSE-SU-2026:5079-1","title":"Security update for sssd","description":"This update for sssd fixes the following issues:\n\n- CVE-2026-12610: cancelled or completed PAM request while the asynchronous child process is still running can lead to a\n  use-after-free (bsc#1269807).\n- CVE-2026-68742: unvalidated address lengths in NSS responder packet parsing can cause a heap out-of-bounds read\n  (bsc#1273922).\n- CVE-2026-68743: oversized length parameters in authentication requests can cause heap out-of-bounds reads\n  (bsc#1273925).\n- CVE-2026-68744: unshrunk packet allocations during group resolution can allow uninitialized heap memory disclosure\n  (bsc#1273924).\n- CVE-2026-90462: Fail-open in LDAP ppolicy access check allows continued authorization (bsc#1282584).\n- CVE-2026-90463: out-of-bounds read in the NSS service request parsers (bsc#1280360).\n- CVE-2026-90994: out-of-bounds read in PAM v1 parser (bsc#1280361).\n- CVE-2026-90995: NULL pointer dereference in PAM responder (bsc#1280362).\n- CVE-2026-90996: zero-length request body underflow in the NSS responder (bsc#1280363).\n- CVE-2026-92821: access control bypass due to premature LDAP access rule evaluation (bsc#1284326).\n- CVE-2026-104029: denial of service due to out-of-bounds read in autofs responder (bsc#1284314).\n- CVE-2026-104031: denial of service via memory exhaustion in autofs responder (bsc#1284316).\n- CVE-2026-104033: access control bypass due to improper LDAP shadow expiration check (bsc#1284318).\n- CVE-2026-104036: denial of service due to out-of-bounds write in NFS idmap plugin (bsc#1284321).\n- CVE-2026-104037: denial of service due to packet length underflow in autofs responder (bsc#1284322).\n- CVE-2026-104038: denial of service via missing SID extension in certificate mapping (bsc#1284323).\n- CVE-2026-104039: denial of service due to stale connection state reuse in PAM GSSAPI responder (bsc#1284324).\n- CVE-2026-104043: Denial of Service via undersized packet parsing in NSS responder (bsc#1284266).\n- CVE-2026-104045: denial of service via race condition in autofs responder (bsc#1284470).\n","status":"published","published":"2026-11-03T08:22:57Z","modified":"2026-11-03T22:45:05.157791012Z","updated_at":"2026-11-03T22:59:30.419462Z"}]}}