- Issued:
- 2026-05-19
- Updated:
- 2026-05-19
RHSA-2026:18599 - Moderate: p11-kit security update
Synopsis
Moderate: p11-kit security update
Type/Severity
Security Advisory Moderate
Topic
An update for p11-kit is now available for Red Hat Enterprise Linux 9.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
The p11-kit packages provide a mechanism to manage PKCS#11 modules. The p11-kit-trust subpackage includes a PKCS#11 trust module that provides certificate anchors and black lists based on configuration files.
Security Fix(es):
- p11-kit: p11-kit: NULL dereference via C_DeriveKey with specific NULL parameters (CVE-2026-2100)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 9 Release Notes linked from the References section.
Solution
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
Affected Products
| Product | Version | Arch |
|---|---|---|
| Red Hat Enterprise Linux for x86_64 | 9 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions | 9.8 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 9.8 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Life Cycle | 9.8 | x86_64 |
| Red Hat Enterprise Linux for Power, little endian | 9 | ppc64le |
| Red Hat Enterprise Linux for Power, little endian - Extended Update Support | 9.8 | ppc64le |
| Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle | 9.8 | ppc64le |
| Red Hat Enterprise Linux for IBM z Systems | 9 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 9.8 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle | 9.8 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - 4 years of updates | 9.8 | s390x |
| Red Hat Enterprise Linux for ARM 64 | 9 | aarch64 |
| Red Hat Enterprise Linux for ARM 64 - Extended Update Support | 9.8 | aarch64 |
| Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle | 9.8 | aarch64 |
| Red Hat Enterprise Linux for ARM 64 - 4 years of updates | 9.8 | aarch64 |
| Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions | 9.8 | ppc64le |
Updated Packages
- p11-kit-debugsource-0.26.2-1.el9.s390x.rpm
- p11-kit-client-debuginfo-0.26.2-1.el9.x86_64.rpm
- p11-kit-devel-0.26.2-1.el9.i686.rpm
- p11-kit-trust-0.26.2-1.el9.i686.rpm
- p11-kit-0.26.2-1.el9.aarch64.rpm
- p11-kit-client-0.26.2-1.el9.x86_64.rpm
- p11-kit-debugsource-0.26.2-1.el9.x86_64.rpm
- p11-kit-devel-0.26.2-1.el9.aarch64.rpm
- p11-kit-client-debuginfo-0.26.2-1.el9.i686.rpm
- p11-kit-trust-0.26.2-1.el9.aarch64.rpm
- p11-kit-server-debuginfo-0.26.2-1.el9.x86_64.rpm
- p11-kit-trust-0.26.2-1.el9.x86_64.rpm
- p11-kit-0.26.2-1.el9.src.rpm
- p11-kit-client-debuginfo-0.26.2-1.el9.ppc64le.rpm
- p11-kit-server-debuginfo-0.26.2-1.el9.i686.rpm
- p11-kit-server-0.26.2-1.el9.s390x.rpm
- p11-kit-trust-debuginfo-0.26.2-1.el9.ppc64le.rpm
- p11-kit-devel-0.26.2-1.el9.x86_64.rpm
- p11-kit-server-0.26.2-1.el9.ppc64le.rpm
- p11-kit-trust-0.26.2-1.el9.s390x.rpm
- p11-kit-debuginfo-0.26.2-1.el9.ppc64le.rpm
- p11-kit-debugsource-0.26.2-1.el9.aarch64.rpm
- p11-kit-debuginfo-0.26.2-1.el9.s390x.rpm
- p11-kit-0.26.2-1.el9.x86_64.rpm
- p11-kit-devel-0.26.2-1.el9.ppc64le.rpm
- p11-kit-server-debuginfo-0.26.2-1.el9.ppc64le.rpm
- p11-kit-0.26.2-1.el9.s390x.rpm
- p11-kit-client-debuginfo-0.26.2-1.el9.s390x.rpm
- p11-kit-server-0.26.2-1.el9.aarch64.rpm
- p11-kit-server-debuginfo-0.26.2-1.el9.aarch64.rpm
- p11-kit-debuginfo-0.26.2-1.el9.x86_64.rpm
- p11-kit-0.26.2-1.el9.ppc64le.rpm
- p11-kit-client-0.26.2-1.el9.ppc64le.rpm
- p11-kit-trust-debuginfo-0.26.2-1.el9.aarch64.rpm
- p11-kit-trust-debuginfo-0.26.2-1.el9.i686.rpm
- p11-kit-client-0.26.2-1.el9.aarch64.rpm
- p11-kit-debugsource-0.26.2-1.el9.i686.rpm
- p11-kit-client-debuginfo-0.26.2-1.el9.aarch64.rpm
- p11-kit-server-0.26.2-1.el9.x86_64.rpm
- p11-kit-trust-0.26.2-1.el9.ppc64le.rpm
- p11-kit-trust-debuginfo-0.26.2-1.el9.s390x.rpm
- p11-kit-server-debuginfo-0.26.2-1.el9.s390x.rpm
- p11-kit-debuginfo-0.26.2-1.el9.i686.rpm
- p11-kit-client-0.26.2-1.el9.s390x.rpm
- p11-kit-debuginfo-0.26.2-1.el9.aarch64.rpm
- p11-kit-devel-0.26.2-1.el9.s390x.rpm
- p11-kit-trust-debuginfo-0.26.2-1.el9.x86_64.rpm
- p11-kit-0.26.2-1.el9.i686.rpm
- p11-kit-debugsource-0.26.2-1.el9.ppc64le.rpm
Fixes
CVEs
References
- https://access.redhat.com/security/updates/classification/#moderate
- https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/9.8_release_notes/index
Additional information
- The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at Security Contacts and Procedures.
- Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.