Bug 2429335 (CVE-2026-22791)

Summary: CVE-2026-22791 openCryptoki: openCryptoki: Denial of Service and heap corruption via heap buffer overflow
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in openCryptoki, a library for cryptographic operations. A local attacker can exploit a heap buffer overflow vulnerability within the CKM_ECDH_AES_KEY_WRAP implementation. By providing a compressed Elliptic Curve (EC) public key and invoking the C_WrapKey function, the attacker can trigger out-of-bounds writes. This can lead to heap corruption and a denial-of-service (DoS) condition, making the application unavailable.
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Description OSIDB Bzimport 2026-01-13 20:02:34 UTC 
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 writes in the host process by supplying a compressed EC public key and invoking C_WrapKey. This can lead to heap corruption, or denial-of-service.