CVE catalog
CVE-2026-23893
openCryptoki vulnerabilities
- Severity
- Medium · CVSS 6.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.18% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | opencryptoki | sid | 3.27.0-1 | fixed |
| Debian | opencryptoki | forky | 3.27.0-1 | fixed |
| Debian | opencryptoki | trixie | 3.23.0+dfsg-0.3+deb13u1 | fixed |
| Debian | opencryptoki | bookworm | 3.8.1+dfsg-3.2 | vulnerable |
| Ubuntu | opencryptoki | noble | Not reported | vulnerable |
| Ubuntu | opencryptoki | noble | 3.23.0+dfsg-0ubuntu3.1 | fixed |
| Ubuntu | libopencryptoki-dev | noble | 3.23.0+dfsg-0ubuntu3.1 | fixed |
| Ubuntu | libopencryptoki0 | noble | 3.23.0+dfsg-0ubuntu3.1 | fixed |
| Ubuntu | opencryptoki | 16.04 | 2.3.1+dfsg-3ubuntu5 | vulnerable |
| Ubuntu | opencryptoki | 16.04 | 3.4.1+dfsg-1ubuntu1 | vulnerable |
| Ubuntu | opencryptoki | 16.04 | 3.4.1+dfsg-1ubuntu2 | vulnerable |
| Ubuntu | opencryptoki | 16.04 | 3.4.1+dfsg-1ubuntu3 | vulnerable |
| Ubuntu | opencryptoki | 16.04 | 3.4.1+dfsg-1ubuntu4 | vulnerable |
| Ubuntu | opencryptoki | 16.04 | 3.4.1+dfsg-1ubuntu4.1 | vulnerable |
| Ubuntu | opencryptoki | 18.04 | 3.7.0+dfsg-4 | vulnerable |
| Ubuntu | opencryptoki | 18.04 | 3.8.1+dfsg-2 | vulnerable |
| Ubuntu | opencryptoki | 18.04 | 3.8.1+dfsg-3 | vulnerable |
| Ubuntu | opencryptoki | 18.04 | 3.8.2+dfsg-0ubuntu1 | vulnerable |
| Ubuntu | opencryptoki | 18.04 | 3.9.0+dfsg-0ubuntu1 | vulnerable |
| Ubuntu | opencryptoki | 18.04 | 3.9.0+dfsg-0ubuntu1.1 | vulnerable |
| Ubuntu | opencryptoki | 18.04 | 3.9.0+dfsg-0ubuntu1.2 | vulnerable |
| Ubuntu | opencryptoki | 18.04 | 3.9.0+dfsg-0ubuntu1.3 | vulnerable |
| Ubuntu | opencryptoki | 18.04 | 3.9.0+dfsg-0ubuntu1.4 | vulnerable |
| Ubuntu | opencryptoki | 20.04 | 3.11.1+dfsg-0ubuntu2 | vulnerable |
| Ubuntu | opencryptoki | 20.04 | 3.11.1+dfsg-0ubuntu3 | vulnerable |
| Ubuntu | opencryptoki | 20.04 | 3.12.1+dfsg-0ubuntu1 | vulnerable |
| Ubuntu | opencryptoki | 20.04 | 3.13.0+dfsg-0ubuntu4 | vulnerable |
| Ubuntu | opencryptoki | 20.04 | 3.13.0+dfsg-0ubuntu5 | vulnerable |
| Ubuntu | opencryptoki | 20.04 | 3.13.0+dfsg-0ubuntu5.1 | vulnerable |
| Ubuntu | opencryptoki | 20.04 | 3.13.0+dfsg-0ubuntu5.2 | vulnerable |
| Ubuntu | opencryptoki | 22.04 | 3.16.0+dfsg-0ubuntu1 | vulnerable |
| Ubuntu | opencryptoki | 22.04 | 3.16.0+dfsg-0ubuntu2 | vulnerable |
| Ubuntu | opencryptoki | 22.04 | 3.16.0+dfsg-0ubuntu3 | vulnerable |
| Ubuntu | opencryptoki | 22.04 | 3.17.0+dfsg+20220202.b40982e-0ubuntu1 | vulnerable |
| Ubuntu | opencryptoki | 22.04 | 3.17.0+dfsg+20220202.b40982e-0ubuntu1.1 | vulnerable |
| Ubuntu | opencryptoki | 22.04 | 3.17.0+dfsg+20220202.b40982e-0ubuntu1.2 | vulnerable |
| Ubuntu | opencryptoki | 22.04 | 3.17.0+dfsg+20220202.b40982e-0ubuntu1.3 | fixed |
| Ubuntu | opencryptoki | 24.04 | 3.21.0+dfsg-0ubuntu1 | vulnerable |
| Ubuntu | opencryptoki | 24.04 | 3.21.0+dfsg-0ubuntu2 | vulnerable |
| Ubuntu | opencryptoki | 24.04 | 3.22.0+dfsg-0ubuntu1 | vulnerable |
| Ubuntu | opencryptoki | 24.04 | 3.23.0+dfsg-0ubuntu1 | vulnerable |
| Ubuntu | opencryptoki | 24.04 | 3.23.0+dfsg-0ubuntu2 | vulnerable |
| Ubuntu | opencryptoki | 24.04 | 3.23.0+dfsg-0ubuntu3 | vulnerable |
| Ubuntu | opencryptoki | 24.04 | 3.23.0+dfsg-0ubuntu3.1 | fixed |
| Ubuntu | opencryptoki | 25.10 | 3.24.0+git20250128.0462717+dfsg-0ubuntu1 | vulnerable |
| Ubuntu | opencryptoki | 25.10 | 3.25.0+dfsg-0ubuntu1 | vulnerable |
| Ubuntu | opencryptoki | 26.04 | 3.25.0+dfsg-0ubuntu1 | vulnerable |
| Ubuntu | opencryptoki | 26.04 | 3.26.0+dfsg-0ubuntu1 | vulnerable |
| Ubuntu | opencryptoki | 26.04 | 3.26.0+dfsg-0ubuntu1.1 | fixed |
| Ubuntu | opencryptoki | 22.04 | 3.16.0+dfsg-0ubuntu1 | vulnerable |
| Ubuntu | opencryptoki | 22.04 | 3.16.0+dfsg-0ubuntu2 | vulnerable |
| Ubuntu | opencryptoki | 22.04 | 3.16.0+dfsg-0ubuntu3 | vulnerable |
| Ubuntu | opencryptoki | 22.04 | 3.17.0+dfsg+20220202.b40982e-0ubuntu1 | vulnerable |
| Ubuntu | opencryptoki | 22.04 | 3.17.0+dfsg+20220202.b40982e-0ubuntu1.1 | vulnerable |
| Ubuntu | opencryptoki | 22.04 | 3.17.0+dfsg+20220202.b40982e-0ubuntu1.2 | vulnerable |
| Ubuntu | opencryptoki | 22.04 | 3.17.0+dfsg+20220202.b40982e-0ubuntu1.3 | fixed |
| Ubuntu | opencryptoki | 24.04 | 3.21.0+dfsg-0ubuntu1 | vulnerable |
| Ubuntu | opencryptoki | 24.04 | 3.21.0+dfsg-0ubuntu2 | vulnerable |
| Ubuntu | opencryptoki | 24.04 | 3.22.0+dfsg-0ubuntu1 | vulnerable |
| Ubuntu | opencryptoki | 24.04 | 3.23.0+dfsg-0ubuntu1 | vulnerable |
| Ubuntu | opencryptoki | 24.04 | 3.23.0+dfsg-0ubuntu2 | vulnerable |
| Ubuntu | opencryptoki | 24.04 | 3.23.0+dfsg-0ubuntu3 | vulnerable |
| Ubuntu | opencryptoki | 24.04 | 3.23.0+dfsg-0ubuntu3.1 | fixed |
| Opensuse | openCryptoki | tumbleweed | 3.26.0-4.1 | fixed |
| Suse | openCryptoki | linux enterprise server ltss extended security 12 sp5 | 3.17.0-5.19.2 | fixed |
| Suse | openCryptoki | linux enterprise micro 5.5 | 3.23.0-150500.3.12.1 | fixed |
| Opensuse | openCryptoki | leap 15.6 | 3.23.0-150600.3.14.1 | fixed |
| Suse | openCryptoki | linux enterprise micro 5.4 | 3.17.0-150400.4.11.1 | fixed |
| Suse | openCryptoki | linux enterprise module for server applications 15 sp7 | 3.26.0-150700.5.12.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | opencryptoki | source | sid | 3.27.0-1 | not yet assigned | Not reported | [1126268] |
| Debian | opencryptoki | source | forky | 3.27.0-1 | not yet assigned | Not reported | [1126268] |
| Debian | opencryptoki | source | trixie | 3.23.0+dfsg-0.3+deb13u1 | not yet assigned | Not reported | [1126268] |
| Debian | opencryptoki | source | bookworm | (unfixed) | not yet assigned | Not reported | [1126268] |
| Ubuntu | opencryptoki | deb | noble | 3.23.0+dfsg-0ubuntu3.1 | Not reported | Not reported | Not reported |
| Ubuntu | libopencryptoki-dev | deb | noble | 3.23.0+dfsg-0ubuntu3.1 | Not reported | Not reported | Not reported |
| Ubuntu | libopencryptoki0 | deb | noble | 3.23.0+dfsg-0ubuntu3.1 | Not reported | Not reported | Not reported |
| Ubuntu | opencryptoki | deb | 22.04 | 3.17.0+dfsg+20220202.b40982e-0ubuntu1.3 | Not reported | UBUNTU-CVE-2026-23893 | Not reported |
| Ubuntu | opencryptoki | deb | 24.04 | 3.23.0+dfsg-0ubuntu3.1 | Not reported | UBUNTU-CVE-2026-23893 | Not reported |
| Ubuntu | opencryptoki | deb | 26.04 | 3.26.0+dfsg-0ubuntu1.1 | Not reported | UBUNTU-CVE-2026-23893 | Not reported |
| Ubuntu | opencryptoki | deb | 22.04 | 3.17.0+dfsg+20220202.b40982e-0ubuntu1.3 | Not reported | USN-8686-1 | Not reported |
| Ubuntu | opencryptoki | deb | 24.04 | 3.23.0+dfsg-0ubuntu3.1 | Not reported | USN-8686-1 | Not reported |
| Opensuse | openCryptoki | rpm | tumbleweed | 3.26.0-4.1 | Not reported | OPENSUSE-SU-2026:10086-1 | Not reported |
| Suse | openCryptoki | rpm | linux enterprise server ltss extended security 12 sp5 | 3.17.0-5.19.2 | Not reported | SUSE-SU-2026:0581-1 | Not reported |
| Suse | openCryptoki | rpm | linux enterprise micro 5.5 | 3.23.0-150500.3.12.1 | Not reported | SUSE-SU-2026:0569-1 | Not reported |
| Opensuse | openCryptoki | rpm | leap 15.6 | 3.23.0-150600.3.14.1 | Not reported | SUSE-SU-2026:0351-1 | Not reported |
| Suse | openCryptoki | rpm | linux enterprise micro 5.4 | 3.17.0-150400.4.11.1 | Not reported | SUSE-SU-2026:0824-1 | Not reported |
| Suse | openCryptoki | rpm | linux enterprise module for server applications 15 sp7 | 3.26.0-150700.5.12.1 | Not reported | SUSE-SU-2026:0481-1 | Not reported |
Notes
[bookworm] opencryptoki: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libopencryptoki0]Affected
Source package: [opencryptoki]
Details (2)
3.8.1+dfsg-3.2+b3· amd64 · bookwormAffected
usn · opencryptoki · debian · bookworm; usn · opencryptoki · debian · 12
3.8.1+dfsg-3.2+b3· arm64 · bookwormAffected
usn · opencryptoki · debian · bookworm; usn · opencryptoki · debian · 12
- [libopencryptoki-dev]Affected
Source package: [opencryptoki]
Details (2)
3.8.1+dfsg-3.2+b3· amd64 · bookwormAffected
usn · opencryptoki · debian · bookworm; usn · opencryptoki · debian · 12
3.8.1+dfsg-3.2+b3· arm64 · bookwormAffected
usn · opencryptoki · debian · bookworm; usn · opencryptoki · debian · 12
- [opencryptoki]Affected
Source package: [opencryptoki]
Details (2)
3.8.1+dfsg-3.2+b3· amd64 · bookwormAffected
usn · opencryptoki · debian · bookworm; usn · opencryptoki · debian · 12
3.8.1+dfsg-3.2+b3· arm64 · bookwormAffected
usn · opencryptoki · debian · bookworm; usn · opencryptoki · debian · 12
[Debian 13 (Trixie)]
- [libopencryptoki0]Affected
Source package: [opencryptoki]
Details (2)
3.23.0+dfsg-0.3+b2· amd64 · trixieAffected · Fixed:
3.23.0+dfsg-0.3+deb13u1usn · opencryptoki · debian · 13
3.23.0+dfsg-0.3+b2· arm64 · trixieAffected · Fixed:
3.23.0+dfsg-0.3+deb13u1usn · opencryptoki · debian · 13
- [libopencryptoki-dev]Affected
Source package: [opencryptoki]
Details (2)
3.23.0+dfsg-0.3+b2· amd64 · trixieAffected · Fixed:
3.23.0+dfsg-0.3+deb13u1usn · opencryptoki · debian · 13
3.23.0+dfsg-0.3+b2· arm64 · trixieAffected · Fixed:
3.23.0+dfsg-0.3+deb13u1usn · opencryptoki · debian · 13
- [opencryptoki]Affected
Source package: [opencryptoki]
Details (2)
3.23.0+dfsg-0.3+b2· amd64 · trixieAffected · Fixed:
3.23.0+dfsg-0.3+deb13u1usn · opencryptoki · debian · 13
3.23.0+dfsg-0.3+b2· arm64 · trixieAffected · Fixed:
3.23.0+dfsg-0.3+deb13u1usn · opencryptoki · debian · 13
[openSUSE Tumbleweed]
- [openCryptoki-64bit]Unknown
Source package: [openCryptoki]
Details (1)
3.27.0-3.2· x86_64 · tumbleweedUnknown · Fixed:
3.26.0-4.1Version impact unknown
usn · openCryptoki · opensuse · tumbleweed
- [openCryptoki-devel]Unknown
Source package: [openCryptoki]
Details (1)
3.27.0-3.2· x86_64 · tumbleweedUnknown · Fixed:
3.26.0-4.1Version impact unknown
usn · openCryptoki · opensuse · tumbleweed
- [openCryptoki]Fixed
Source package: [openCryptoki]
Details (1)
3.27.0-3.2· x86_64 · tumbleweedFixed · Fixed:
3.26.0-4.1usn · openCryptoki · opensuse · tumbleweed
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_10086-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-23893]
- [https://osv.dev/vulnerability/SUSE-SU-2026:0351-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:0481-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:0569-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:0581-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:0824-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-23893]
- [https://osv.dev/vulnerability/USN-8686-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:10086-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-23893]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23893.json]
- [https://ubuntu.com/security/notices/USN-8686-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0756.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]