{"id":"CVE-2026-2100","summary":"P11-kit: null dereference via c_derivekey with specific null parameters","details":"A flaw was found in p11-kit. A remote attacker could exploit this vulnerability by calling the C_DeriveKey function on a remote token with specific IBM kyber or IBM btc derive mechanism parameters set to NULL. This could lead to the RPC-client attempting to return an uninitialized value, potentially resulting in a NULL dereference or undefined behavior. This issue may cause an application level denial of service or other unpredictable system states.","modified":"2026-09-07T03:31:09.506781606Z","published":"2026-03-26T20:01:46.174Z","related":["ALSA-2026:18143","ALSA-2026:18599","openSUSE-SU-2026:10169-1"],"database_specific":{"cna_assigner":"redhat","cwe_ids":["CWE-824"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/2xxx/CVE-2026-2100.json"},"references":[{"type":"WEB","url":"https://access.redhat.com/downloads/content/package-browser/"},{"type":"WEB","url":"https://catalog.redhat.com/software/containers/"},{"type":"WEB","url":"https://github.com/p11-glue/p11-kit/releases/tag/0.26.2"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:18143"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:18599"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:21275"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:22634"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:27998"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:58981"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:7065"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-2100"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/2xxx/CVE-2026-2100.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-2100"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2437308"},{"type":"FIX","url":"https://github.com/p11-glue/p11-kit/pull/740"},{"type":"PACKAGE","url":"https://github.com/p11-glue/p11-kit"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/p11-glue/p11-kit","events":[{"introduced":"0"},{"fixed":"8e6e4e6d64d9fe91c62b0052c105b2b72d4c24ef"}],"database_specific":{"source":["AFFECTED_FIELD","REFERENCES"],"extracted_events":[{"introduced":"0"},{"fixed":"0.26.2"}]}}],"versions":["0.26.1","0.26.0","0.25.10","0.25.9","0.25.8","0.25.7","0.25.6","0.25.5","0.25.4","0.25.3","0.25.2","0.25.1","0.25.0","0.24.1","0.24.0","0.23.21","0.23.20","0.23.19","0.23.18.1","0.23.18","0.23.17","0.23.16.1","0.23.16","0.23.15","0.23.14","0.23.13","0.23.12","0.23.11","0.23.10","0.23.7","0.23.6","0.23.5","0.23.4","0.23.3","0.23.2","0.23.1","0.22.1","0.22.0","0.21.3","0.21.2","0.21.1","0.20.3","0.20.2","0.20.1","0.20.0","0.19.3","0.19.2","0.18.2","0.19.1","0.18.1","0.18.0","0.17.5","0.17.4","0.17.3","0.17.2","0.17.1","0.16.4","0.16.3","0.16.2","0.16.1","0.16.0","0.15.2","0.15.1","0.14","0.13","0.12","0.11","0.10","0.9","0.8","0.7","0.6","0.5","0.4","0.3","0.2","0.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-2100.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}