CVE-2026-23893 — Link Following in Opencryptoki

CWE-59 — Link Following6 documents6 sources
Severity
6.8MEDIUMNVD
EPSS
0.0%
top 99.73%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
OpencryptokiOpencryptoki Project Opencryptoki
Timeline
PublishedJan 22

Description

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. …

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:LExploitability: 1.3 | Impact: 5.5

Affected Packages2 packages

▶CVEListV5opencryptoki/opencryptoki>= 2.3.2

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

2
OSV
CVE-2026-23893: openCryptoki is a PKCS#11 library and provides tooling for Linux and AIX↗2026-01-22
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CVEList
openCryptoki has improper link resolution before file access (link following)↗2026-01-22
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📋Vendor Advisories

2
Red Hat
openCryptoki: openCryptoki: Privilege Escalation or Data Exposure via Symlink Following↗2026-01-22
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Debian
CVE-2026-23893: opencryptoki - openCryptoki is a PKCS#11 library and provides tooling for Linux and AIX. Versio...↗2026
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🕵️Threat Intelligence

1
Wiz
CVE-2026-23893 Impact, Exploitability, and Mitigation Steps | Wiz↗
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CVE-2026-23893 — Link Following in Opencryptoki | cvebase