CVE-2026-23893

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Source
https://cve.org/CVERecord?id=CVE-2026-23893
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23893.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-23893
Aliases
  • GHSA-j6c7-mvpx-jx5q
Downstream
Related
Published
2026-01-22T00:01:43.521Z
Modified
2026-08-12T04:17:28.473542221Z
Severity
  • 6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L CVSS Calculator
Summary
openCryptoki has improper link resolution before file access (link following)
Details

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.

Database specific 
{
    "cwe_ids": [
        "CWE-59"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23893.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/opencryptoki/opencryptoki

Affected ranges

Type
GIT
Repo
https://github.com/opencryptoki/opencryptoki
Events
Introduced
4498ff813bd2e176ae1646b5d394f4872af99740
Fixed
5e6e4b42f2b1fcc1e4ef1b920e463bfa55da8b45
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": ">= 2.3.2"
        },
        {
            "last_affected": ">= 2.3.2"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

>= 2.*
>= 2.3.2
v2.*
v2.3.2
v2.3.3
v2.4.3
v2.4.3.1
v3.*
v3.0
v3.1
v3.10.0
v3.11.0
v3.11.1
v3.12.0
v3.12.1
v3.13.0
v3.14.0
v3.15.0
v3.15.1
v3.16.0
v3.17.0
v3.18.0
v3.19.0
v3.2
v3.20.0
v3.21.0
v3.22.0
v3.23.0
v3.24.0
v3.25.0
v3.26.0
v3.3
v3.4
v3.4.1
v3.5
v3.6
v3.6.1
v3.6.2
v3.7.0
v3.8.0
v3.8.1
v3.8.2
v3.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23893.json"