{"id":"CVE-2026-2100","title":"A flaw was found in p11-kit","summary":"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-…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","cwe":["CWE-824"],"published":"2026-03-26","updated":"2026-06-22","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-2100","references":[{"url":"https://access.redhat.com/errata/RHSA-2026:18143","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:18599","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:21275","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:22634","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:27998","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:7065","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2026-2100","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2437308","label":"secalert@redhat.com"},{"url":"https://github.com/p11-glue/p11-kit/pull/740","label":"secalert@redhat.com"}],"tags":["nvd"],"epss":0.0116,"epssPercentile":0.65769,"ingestedAt":"2026-06-29T13:24:34.813Z","slug":"CVE-2026-2100","body":"## Overview\n\nA 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}