{"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"],"vendor":"p11-kit_project","product":"p11-kit","affected":["p11-kit","hardened_images","enterprise_linux = 9.0","enterprise_linux = 10.0"],"patched":["enterprise_linux_appstream_v_10","enterprise_linux_appstream_v_9","enterprise_linux_baseos_v_10","enterprise_linux_baseos_v_9","cert_manager_support_for_red_hat_openshift_release 1.20","cost_management 4","hardened_images","insights_proxy 1.5","update_infrastructure 5"],"published":"2026-03-26","updated":"2026-10-14","sourceUpdated":"2026-10-14T20:17:35.930","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-2026:58981","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:7065","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:72502","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:82304","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:82322","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:82347","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:82354","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:82372","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:82857","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:82888","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"},{"url":"https://github.com/p11-glue/p11-kit/releases/tag/0.26.2","label":"secalert@redhat.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2100.json"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-2100"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-2100"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.01311,"epssPercentile":0.70507,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-03-26T20:30:34.453809Z"},"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## Affected\n\n- `p11-kit`\n- `hardened_images`\n- `enterprise_linux = 9.0`\n- `enterprise_linux = 10.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **RHSA-2026:18143** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10) · released 2026-05-19 · [advisory](https://access.redhat.com/errata/RHSA-2026:18143)\n- **RHSA-2026:18599** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9) · released 2026-05-19 · [advisory](https://access.redhat.com/errata/RHSA-2026:18599)\n- **RHSA-2026:72502** · Red Hat · fixed in: Cert Manager support for Red Hat OpenShift release 1.20 · released 2026-09-28 · [advisory](https://access.redhat.com/errata/RHSA-2026:72502)\n- **RHSA-2026:27998** · Red Hat · fixed in: Cost Management 4 · released 2026-06-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:27998)\n- **RHSA-2026:7065** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-04-08 · [advisory](https://access.redhat.com/errata/RHSA-2026:7065)\n- **RHSA-2026:22634** · Red Hat · fixed in: Red Hat Insights proxy 1.5 · released 2026-06-02 · [advisory](https://access.redhat.com/errata/RHSA-2026:22634)\n- **RHSA-2026:58981** · Red Hat · fixed in: Red Hat Update Infrastructure 5 · released 2026-08-24 · [advisory](https://access.redhat.com/errata/RHSA-2026:58981)\n- **RHSA-2026:21275** · Red Hat · fixed in: Red Hat Update Infrastructure 5 · released 2026-05-27 · [advisory](https://access.redhat.com/errata/RHSA-2026:21275)\n- **Red Hat VEX** · Moderate · affected: Red Hat OpenShift Container Platform 4 · updated 2026-09-29 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2100.json)","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.3,"exploitation":0,"ransomware":0},"changes":[]}