CVE-2026-23893— openCryptoki has improper link resolution before file access (link following)

openCryptoki has improper link resolution before file access (link following)

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L

在文件访问前对链接解析不恰当(链接跟随)

openCryptoki 后置链接漏洞

openCryptoki是openCryptoki开源的一个适用于 Linux 的 PKCS#11 库和工具。 openCryptoki 2.3.2及之后版本存在后置链接漏洞，该漏洞源于在特权环境中运行时存在符号链接跟随问题，可能导致权限提升或数据泄露。

N/A

N/A