Vulnerability in Opencryptoki
CVE-2026-22791
openCryptoki is a PKCS#11 library and tools for Linux and AIX. In 3.25.0 and 3.26.0, there is a heap buffer overflow vulnerability in the CKM_ECDH_AES_KEY_WRAP implementation allows an attacker with local access to cause out-of-bounds writ…
EPSS: 0.002 (14.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H.
Affected products
- Opencryptoki — versions >= 3.25.0, <= 3.26.0
- Opencryptoki_project Opencryptoki — versions 3.25.0, 3.26.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Patch, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-22791?
- CVE-2026-22791 is a medium-severity vulnerability in Opencryptoki, classified under Incorrect Calculation of Buffer Size. CVSS score: 6.6/10. Published 2026-01-13.
- How severe is CVE-2026-22791?
- Medium severity. CVSS v3 base score is 6.6 out of 10.