Security update for openCryptoki SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2026:0581-1 Final 1 1 2026-02-20T06:38:26Z current 2026-02-20T06:38:26Z 2026-02-20T06:38:26Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for openCryptoki This update for openCryptoki fixes the following issues: - CVE-2026-23893: Privilege Escalation or Data Exposure via Symlink Following (bsc#1257116). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2026-581,SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-581 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2026/suse-su-20260581-1/ Link for SUSE-SU-2026:0581-1 https://lists.suse.com/pipermail/sle-security-updates/2026-February/024355.html E-Mail link for SUSE-SU-2026:0581-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1257116 SUSE Bug 1257116 https://www.suse.com/security/cve/CVE-2026-23893/ SUSE CVE CVE-2026-23893 page SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 openCryptoki-3.17.0-5.19.2 openCryptoki-32bit-3.17.0-5.19.2 openCryptoki-64bit-3.17.0-5.19.2 openCryptoki-devel-3.17.0-5.19.2 openCryptoki-3.17.0-5.19.2 as a component of SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 openCryptoki-64bit-3.17.0-5.19.2 as a component of SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 openCryptoki-devel-3.17.0-5.19.2 as a component of SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 openCryptoki is a PKCS#11 library and provides tooling for Linux and AIX. Versions 2.3.2 and above are vulnerable to symlink-following when running in privileged contexts. A token-group user can redirect file operations to arbitrary filesystem targets by planting symlinks in group-writable token directories, resulting in privilege escalation or data exposure. Token and lock directories are 0770 (group-writable for token users), so any token-group member can plant files and symlinks inside them. When run as root, the base code handling token directory file access, as well as several openCryptoki tools used for administrative purposes, may reset ownership or permissions on existing files inside the token directories. An attacker with token-group membership can exploit the system when an administrator runs a PKCS#11 application or administrative tool that performs chown on files inside the token directory during normal maintenance. This issue is fixed in commit 5e6e4b4, but has not been included in a released version at the time of publication. CVE-2026-23893 SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:openCryptoki-3.17.0-5.19.2 SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:openCryptoki-64bit-3.17.0-5.19.2 SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:openCryptoki-devel-3.17.0-5.19.2 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2026/suse-su-20260581-1/ https://www.suse.com/security/cve/CVE-2026-23893.html CVE-2026-23893 https://bugzilla.suse.com/1257116 SUSE Bug 1257116