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CVE-2026-22791

openCryptoki incorrectly calculates the buffer size in C_WrapKey with CKM_ECDH_AES_KEY_WRAP

6.6 MediumFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
High

Exploit likelihood

0.28%Up 0.3 points since Jan 14, 2026
90%50%10%1%

What each source reports

CVE List Score used 6.6

openCryptoki incorrectly calculates the buffer size in C_WrapKey with CKM_ECDH_AES_KEY_WRAP

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.

Record
CVE-2026-22791
CVSS 3.1
6.6 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
Weakness
CWE-131
Updated
2026-11-02
EUVDEUVD-2026-2415 6.6

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.

Record
EUVD-2026-2415
CVSS 3.1
6.6 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
Updated
2026-11-02
NVD 6.6

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.

Record
CVE-2026-22791
CVSS 3.1
6.6 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
CVSS 3.1
6.1 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Weakness
CWE-131
Updated
2026-11-02
OSV 6.6

openCryptoki incorrectly calculates the buffer size in C_WrapKey with CKM_ECDH_AES_KEY_WRAP

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.

Record
CVE-2026-22791
CVSS 3.1
6.6 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
Weakness
CWE-131
Updated
2026-11-02
OSVOESA-2026-1257 6.8

opencryptoki security update

openCryptoki is an implementation of the PKCS #11 API that allows interfacing to devices that hold cryptographic information and perform cryptographic functions. openCryptoki provides application portability by isolating the application from the details of the cryptographic device. Isolating the application also provides an added level of security. The openCryptoki API provides a standard programming interface between applications and all kinds of portable cryptographic devices.

Security Fix(es):

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.(CVE-2026-22791)

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.(CVE-2026-23893)

Record
OESA-2026-1257
CVSS 3.1
6.8 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L
Updated
2026-11-02
OSVOESA-2026-1258 6.8

opencryptoki security update

openCryptoki is an implementation of the PKCS #11 API that allows interfacing to devices that hold cryptographic information and perform cryptographic functions. openCryptoki provides application portability by isolating the application from the details of the cryptographic device. Isolating the application also provides an added level of security. The openCryptoki API provides a standard programming interface between applications and all kinds of portable cryptographic devices.

Security Fix(es):

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.(CVE-2026-22791)

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.(CVE-2026-23893)

Record
OESA-2026-1258
CVSS 3.1
6.8 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L
Updated
2026-11-02
Show 13 moreShow less
OSVOESA-2026-1320 6.8

opencryptoki security update

openCryptoki is an implementation of the PKCS #11 API that allows interfacing to devices that hold cryptographic information and perform cryptographic functions. openCryptoki provides application portability by isolating the application from the details of the cryptographic device. Isolating the application also provides an added level of security. The openCryptoki API provides a standard programming interface between applications and all kinds of portable cryptographic devices.

Security Fix(es):

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.(CVE-2026-22791)

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.(CVE-2026-23893)

Record
OESA-2026-1320
CVSS 3.1
6.8 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L
Updated
2026-11-02
OSVOESA-2026-1321 6.8

opencryptoki security update

openCryptoki is an implementation of the PKCS #11 API that allows interfacing to devices that hold cryptographic information and perform cryptographic functions. openCryptoki provides application portability by isolating the application from the details of the cryptographic device. Isolating the application also provides an added level of security. The openCryptoki API provides a standard programming interface between applications and all kinds of portable cryptographic devices.

Security Fix(es):

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.(CVE-2026-22791)

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.(CVE-2026-23893)

Record
OESA-2026-1321
CVSS 3.1
6.8 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L
Updated
2026-11-02
OSVOESA-2026-1381 6.8

opencryptoki security update

openCryptoki is an implementation of the PKCS #11 API that allows interfacing to devices that hold cryptographic information and perform cryptographic functions. openCryptoki provides application portability by isolating the application from the details of the cryptographic device. Isolating the application also provides an added level of security. The openCryptoki API provides a standard programming interface between applications and all kinds of portable cryptographic devices.

Security Fix(es):

A timing side-channel vulnerability has been discovered in the opencryptoki package while processing RSA PKCS#1 v1.5 padded ciphertexts. This flaw could potentially enable unauthorized RSA ciphertext decryption or signing, even without access to the corresponding private key.(CVE-2024-0914)

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.(CVE-2026-22791)

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.(CVE-2026-23893)

Record
OESA-2026-1381
CVSS 3.1
6.8 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L
Updated
2026-11-02
OSVUBUNTU-CVE-2026-22791 6.6

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.

Record
UBUNTU-CVE-2026-22791
CVSS 3.1
6.6 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
CVSS 3.1
6.1 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Updated
2026-11-02
OSVopenSUSE-SU-2026:10048-1 No score

openCryptoki-3.26.0-3.1 on GA media

These are all security issues fixed in the openCryptoki-3.26.0-3.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:10048-1
Updated
2026-11-02
OSVopenSUSE-SU-2026:20233-1 No score

Security update for openCryptoki

This update for openCryptoki fixes the following issues:

Upgrade openCryptoki to 3.26 (jsc#PED-14609)

Security fixes:

  • CVE-2026-22791: supplying malformed compressed EC public key can lead to heap corruption or denial-of-service (bsc#1256673).
  • CVE-2026-23893: Privilege Escalation or Data Exposure via Symlink Following (bsc#1257116).

Other fixes:

  • Soft: Add support for RSA keys up to 16K bits.
  • CCA: Add support for RSA keys up to 8K bits (requires CCA v8.4 or v7.6 or later).
  • p11sak: Add support for generating RSA keys up to 16K bits.
  • Soft/ICA: Add support for SHA512/224 and SHA512/256 key derivation mechanism (CKM_SHA512_224_KEY_DERIVATION and CKM_SHA512_256_KEY_DERIVATION).
  • Soft/ICA/CCA/EP11: Add support for SHA-HMAC key types CKK_SHAxxx_HMAC and key gen mechanisms CKM_SHAxxx_KEY_GEN.
  • p11sak: Add support for SHA-HMAC key types and key generation.
  • p11sak: Add support for key wrap and unwrap commands to export and import private and secret keys by means of key wrapping/unwrapping with various key wrapping mechanism.
  • p11kmip: Add support for using an HSM-protected TLS client key via a PKCS#11 provider.
  • p11sak: Add support for exporting non-sensitive private keys to password protected PEM files.
  • Add support for canceling an operation via NULL mechanism pointer at C_XxxInit() call as an alternative to C_SessionCancel() (PKCS#11 v3.0).
  • EP11: Add support for pairing friendly BLS12-381 EC curve for sign/verify using CKM_IBM_ECDSA_OTHER and signature/public key aggregation using CKM_IBM_EC_AGGREGATE.
  • p11sak: Add support for generating BLS12-381 EC keys.
  • EP11: Add support for IBM-specific ML-DSA and ML-KEM key types and mechanisms (requires an EP11 host library v4.2 or later, and a CEX8P crypto card with firmware v9.6 or later on IBM z17, and v8.39 or later on IBM z16).
  • CCA: Add support for IBM-specific ML-DSA and ML-KEM key types and mechanisms (requires CCA v8.4 or later).
  • Soft: Add support for IBM-specific ML-DSA and ML-KEM key types and mechanisms (requires OpenSSL 3.5 or later, or the OQS-provider must be configured).
  • p11sak: Add support for IBM-specific ML-DSA and ML-KEM key types.
  • Bug fixes.
Record
openSUSE-SU-2026:20233-1
Updated
2026-11-02
OSVopenSUSE-SU-2026:21059-1 No score

Security update for openCryptoki

This update for openCryptoki fixes the following issues

Upgrade openCryptoki to version 3.27 (jsc#PED-14609):

  • Add base support for PKCS#11 v3.2.
  • Add support for PKCS#11 v3.2 C_VerifySignature[Init|Update|Final].
  • Add support for PKCS#11 v3.2 C_EncapsulateKey/C_DecapsulateKey.
  • Soft/ICA/CCA/EP11: Add support for PKCS#11 v3.2 en-/decapsulate with RSA-PKCS and RSA-OAEP mechanisms.
  • Soft/ICA/CCA/EP11: Add support for PKCS#11 v3.2 en-/decapsulate with the ECDH mechanism.
  • Soft/EP11: Add support for PKCS#11 v3.2 en-/decapsulate with the DH-PKCS mechanism.
  • Soft: Add support for PKCS#11 v3.2 ML-DSA and ML-KEM key types and mechanisms (requires OpenSSL 3.5 or later, or the OQS-provider must be configured).
  • CCA: Add support for PKCS#11 v3.2 ML-DSA key type and mechanisms (requires CCA v8.4 or later)
  • EP11: Add support for PKCS#11 v3.2 ML-DSA and ML-KEM key types and mechanisms (requires an EP11 host library v4.2 or later, and a CEX8P crypto card with firmware v9.6 or later on IBM z17, and v8.39 or later on IBM z16).
  • p11sak: Add support for PKCS#11 v3.2 ML-DSA and ML-KEM key types.
  • Soft/ICA: Add support for PKCS#11 v3.2 mechanisms CKM_ECDH_X_AES_KEY_WRAP and CKM_ECDH_COF_AES_KEY_WRAP.
  • p11sak: Add support for key wrapping with PKCS#11 v3.2 mechanisms CKM_ECDH_X_AES_KEY_WRAP and CKM_ECDH_COF_AES_KEY_WRAP.
  • Soft/ICA/CCA/EP11: Add support for PKCS#11 v3.2 mechanism CKM_PUB_KEY_FROM_PRIV_KEY.
  • Soft/ICA/CCA/EP11: Add support for PKCS#11 v3.0 Edwards and Montgomery key types and mechanisms.
  • Soft/ICA: Support CKM_ECDH_AES_KEY_WRAP also for Montgomery keys.
  • p11sak: Add support for PKCS#11 v3.0 Edwards and Montgomery key types.
  • Soft: Add support for CKM_ECDH1_COFACTOR_DERIVE.
  • CCA: Add support for additional RSA public exponent values 5, 17, or 257.
  • p11sak: Add option to list-key command to show EP11 session IDs.
  • Make the maximum number of token objects supported configurable.
  • Fixes for CVE-2026-40253, CVE-2026-23893, and CVE-2026-22791.
  • Bug fixes.
Record
openSUSE-SU-2026:21059-1
Updated
2026-11-02
OSVSUSE-SU-2026:0291-1 No score

Security update for openCryptoki

This update for openCryptoki fixes the following issues:

  • CVE-2026-22791: Fixed supplying malformed compressed EC public key can lead to heap corruption or denial-of-service (bsc#1256673).
Record
SUSE-SU-2026:0291-1
Updated
2026-11-02
OSVSUSE-SU-2026:20345-1 No score

Security update for openCryptoki

This update for openCryptoki fixes the following issues:

Upgrade openCryptoki to 3.26 (jsc#PED-14609)

Security fixes:

  • CVE-2026-22791: supplying malformed compressed EC public key can lead to heap corruption or denial-of-service (bsc#1256673).
  • CVE-2026-23893: Privilege Escalation or Data Exposure via Symlink Following (bsc#1257116).

Other fixes:

  • Soft: Add support for RSA keys up to 16K bits.
  • CCA: Add support for RSA keys up to 8K bits (requires CCA v8.4 or v7.6 or later).
  • p11sak: Add support for generating RSA keys up to 16K bits.
  • Soft/ICA: Add support for SHA512/224 and SHA512/256 key derivation mechanism (CKM_SHA512_224_KEY_DERIVATION and CKM_SHA512_256_KEY_DERIVATION).
  • Soft/ICA/CCA/EP11: Add support for SHA-HMAC key types CKK_SHAxxx_HMAC and key gen mechanisms CKM_SHAxxx_KEY_GEN.
  • p11sak: Add support for SHA-HMAC key types and key generation.
  • p11sak: Add support for key wrap and unwrap commands to export and import private and secret keys by means of key wrapping/unwrapping with various key wrapping mechanism.
  • p11kmip: Add support for using an HSM-protected TLS client key via a PKCS#11 provider.
  • p11sak: Add support for exporting non-sensitive private keys to password protected PEM files.
  • Add support for canceling an operation via NULL mechanism pointer at C_XxxInit() call as an alternative to C_SessionCancel() (PKCS#11 v3.0).
  • EP11: Add support for pairing friendly BLS12-381 EC curve for sign/verify using CKM_IBM_ECDSA_OTHER and signature/public key aggregation using CKM_IBM_EC_AGGREGATE.
  • p11sak: Add support for generating BLS12-381 EC keys.
  • EP11: Add support for IBM-specific ML-DSA and ML-KEM key types and mechanisms (requires an EP11 host library v4.2 or later, and a CEX8P crypto card with firmware v9.6 or later on IBM z17, and v8.39 or later on IBM z16).
  • CCA: Add support for IBM-specific ML-DSA and ML-KEM key types and mechanisms (requires CCA v8.4 or later).
  • Soft: Add support for IBM-specific ML-DSA and ML-KEM key types and mechanisms (requires OpenSSL 3.5 or later, or the OQS-provider must be configured).
  • p11sak: Add support for IBM-specific ML-DSA and ML-KEM key types.
  • Bug fixes.
Record
SUSE-SU-2026:20345-1
Updated
2026-11-02
OSVSUSE-SU-2026:20434-1 No score

Security update for openCryptoki

This update for openCryptoki fixes the following issues:

Upgrade openCryptoki to 3.26 (jsc#PED-14609)

Security fixes:

  • CVE-2026-22791: supplying malformed compressed EC public key can lead to heap corruption or denial-of-service (bsc#1256673).
  • CVE-2026-23893: Privilege Escalation or Data Exposure via Symlink Following (bsc#1257116).

Other fixes:

  • Soft: Add support for RSA keys up to 16K bits.
  • CCA: Add support for RSA keys up to 8K bits (requires CCA v8.4 or v7.6 or later).
  • p11sak: Add support for generating RSA keys up to 16K bits.
  • Soft/ICA: Add support for SHA512/224 and SHA512/256 key derivation mechanism (CKM_SHA512_224_KEY_DERIVATION and CKM_SHA512_256_KEY_DERIVATION).
  • Soft/ICA/CCA/EP11: Add support for SHA-HMAC key types CKK_SHAxxx_HMAC and key gen mechanisms CKM_SHAxxx_KEY_GEN.
  • p11sak: Add support for SHA-HMAC key types and key generation.
  • p11sak: Add support for key wrap and unwrap commands to export and import private and secret keys by means of key wrapping/unwrapping with various key wrapping mechanism.
  • p11kmip: Add support for using an HSM-protected TLS client key via a PKCS#11 provider.
  • p11sak: Add support for exporting non-sensitive private keys to password protected PEM files.
  • Add support for canceling an operation via NULL mechanism pointer at C_XxxInit() call as an alternative to C_SessionCancel() (PKCS#11 v3.0).
  • EP11: Add support for pairing friendly BLS12-381 EC curve for sign/verify using CKM_IBM_ECDSA_OTHER and signature/public key aggregation using CKM_IBM_EC_AGGREGATE.
  • p11sak: Add support for generating BLS12-381 EC keys.
  • EP11: Add support for IBM-specific ML-DSA and ML-KEM key types and mechanisms (requires an EP11 host library v4.2 or later, and a CEX8P crypto card with firmware v9.6 or later on IBM z17, and v8.39 or later on IBM z16).
  • CCA: Add support for IBM-specific ML-DSA and ML-KEM key types and mechanisms (requires CCA v8.4 or later).
  • Soft: Add support for IBM-specific ML-DSA and ML-KEM key types and mechanisms (requires OpenSSL 3.5 or later, or the OQS-provider must be configured).
  • p11sak: Add support for IBM-specific ML-DSA and ML-KEM key types.
  • Bug fixes.
Record
SUSE-SU-2026:20434-1
Updated
2026-11-02
OSVSUSE-SU-2026:22293-1 No score

Security update for openCryptoki

This update for openCryptoki fixes the following issues

Upgrade openCryptoki to version 3.27 (jsc#PED-14609):

  • Add base support for PKCS#11 v3.2.
  • Add support for PKCS#11 v3.2 C_VerifySignature[Init|Update|Final].
  • Add support for PKCS#11 v3.2 C_EncapsulateKey/C_DecapsulateKey.
  • Soft/ICA/CCA/EP11: Add support for PKCS#11 v3.2 en-/decapsulate with RSA-PKCS and RSA-OAEP mechanisms.
  • Soft/ICA/CCA/EP11: Add support for PKCS#11 v3.2 en-/decapsulate with the ECDH mechanism.
  • Soft/EP11: Add support for PKCS#11 v3.2 en-/decapsulate with the DH-PKCS mechanism.
  • Soft: Add support for PKCS#11 v3.2 ML-DSA and ML-KEM key types and mechanisms (requires OpenSSL 3.5 or later, or the OQS-provider must be configured).
  • CCA: Add support for PKCS#11 v3.2 ML-DSA key type and mechanisms (requires CCA v8.4 or later)
  • EP11: Add support for PKCS#11 v3.2 ML-DSA and ML-KEM key types and mechanisms (requires an EP11 host library v4.2 or later, and a CEX8P crypto card with firmware v9.6 or later on IBM z17, and v8.39 or later on IBM z16).
  • p11sak: Add support for PKCS#11 v3.2 ML-DSA and ML-KEM key types.
  • Soft/ICA: Add support for PKCS#11 v3.2 mechanisms CKM_ECDH_X_AES_KEY_WRAP and CKM_ECDH_COF_AES_KEY_WRAP.
  • p11sak: Add support for key wrapping with PKCS#11 v3.2 mechanisms CKM_ECDH_X_AES_KEY_WRAP and CKM_ECDH_COF_AES_KEY_WRAP.
  • Soft/ICA/CCA/EP11: Add support for PKCS#11 v3.2 mechanism CKM_PUB_KEY_FROM_PRIV_KEY.
  • Soft/ICA/CCA/EP11: Add support for PKCS#11 v3.0 Edwards and Montgomery key types and mechanisms.
  • Soft/ICA: Support CKM_ECDH_AES_KEY_WRAP also for Montgomery keys.
  • p11sak: Add support for PKCS#11 v3.0 Edwards and Montgomery key types.
  • Soft: Add support for CKM_ECDH1_COFACTOR_DERIVE.
  • CCA: Add support for additional RSA public exponent values 5, 17, or 257.
  • p11sak: Add option to list-key command to show EP11 session IDs.
  • Make the maximum number of token objects supported configurable.
  • Fixes for CVE-2026-40253, CVE-2026-23893, and CVE-2026-22791.
  • Bug fixes.
Record
SUSE-SU-2026:22293-1
Updated
2026-11-02
OSVSUSE-SU-2026:22365-1 No score

Security update for openCryptoki

This update for openCryptoki fixes the following issues

Upgrade openCryptoki to version 3.27 (jsc#PED-14609):

  • Add base support for PKCS#11 v3.2.
  • Add support for PKCS#11 v3.2 C_VerifySignature[Init|Update|Final].
  • Add support for PKCS#11 v3.2 C_EncapsulateKey/C_DecapsulateKey.
  • Soft/ICA/CCA/EP11: Add support for PKCS#11 v3.2 en-/decapsulate with RSA-PKCS and RSA-OAEP mechanisms.
  • Soft/ICA/CCA/EP11: Add support for PKCS#11 v3.2 en-/decapsulate with the ECDH mechanism.
  • Soft/EP11: Add support for PKCS#11 v3.2 en-/decapsulate with the DH-PKCS mechanism.
  • Soft: Add support for PKCS#11 v3.2 ML-DSA and ML-KEM key types and mechanisms (requires OpenSSL 3.5 or later, or the OQS-provider must be configured).
  • CCA: Add support for PKCS#11 v3.2 ML-DSA key type and mechanisms (requires CCA v8.4 or later)
  • EP11: Add support for PKCS#11 v3.2 ML-DSA and ML-KEM key types and mechanisms (requires an EP11 host library v4.2 or later, and a CEX8P crypto card with firmware v9.6 or later on IBM z17, and v8.39 or later on IBM z16).
  • p11sak: Add support for PKCS#11 v3.2 ML-DSA and ML-KEM key types.
  • Soft/ICA: Add support for PKCS#11 v3.2 mechanisms CKM_ECDH_X_AES_KEY_WRAP and CKM_ECDH_COF_AES_KEY_WRAP.
  • p11sak: Add support for key wrapping with PKCS#11 v3.2 mechanisms CKM_ECDH_X_AES_KEY_WRAP and CKM_ECDH_COF_AES_KEY_WRAP.
  • Soft/ICA/CCA/EP11: Add support for PKCS#11 v3.2 mechanism CKM_PUB_KEY_FROM_PRIV_KEY.
  • Soft/ICA/CCA/EP11: Add support for PKCS#11 v3.0 Edwards and Montgomery key types and mechanisms.
  • Soft/ICA: Support CKM_ECDH_AES_KEY_WRAP also for Montgomery keys.
  • p11sak: Add support for PKCS#11 v3.0 Edwards and Montgomery key types.
  • Soft: Add support for CKM_ECDH1_COFACTOR_DERIVE.
  • CCA: Add support for additional RSA public exponent values 5, 17, or 257.
  • p11sak: Add option to list-key command to show EP11 session IDs.
  • Make the maximum number of token objects supported configurable.
  • Fixes for CVE-2026-40253, CVE-2026-23893, and CVE-2026-22791.
  • Bug fixes.
Record
SUSE-SU-2026:22365-1
Updated
2026-11-02
OSVUSN-8707-1 No score

opencryptoki vulnerabilities

It was discovered that primitive decoders in openCryptoki produced integer underflows when the encoded length was zero. An attacker could possibly use this issue to trigger out-of-bounds reads. (CVE-2026-40253)

It was discovered that openCryptoki incorrectly handled symlinks. An attacker in the token-group could possibly use this issue to achieve privilege escalation or access sensitive information. (CVE-2026-23893)

It was discovered that the CKM_ECDH_AES_KEY_WRAP implementation had a heap buffer overflow vulnerability. An attacker could possibly use this issue to trigger heap corruption, or denial-of-service. (CVE-2026-22791)

Record
USN-8707-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
opencryptoki
openEuler:24.03-LTS-SP1
From an advisory covering 2 CVEs
 before 3.26.0-1.oe2403sp1
3.26.0-1.oe2403sp1
opencryptoki
openEuler:24.03-LTS-SP3
From an advisory covering 2 CVEs
 before 3.26.0-1.oe2403sp3
3.26.0-1.oe2403sp3
opencryptoki
openEuler:24.03-LTS
From an advisory covering 2 CVEs
 before 3.26.0-1.oe2403
3.26.0-1.oe2403
opencryptoki
openEuler:24.03-LTS-SP2
From an advisory covering 2 CVEs
 before 3.26.0-1.oe2403sp2
3.26.0-1.oe2403sp2
opencryptoki
openEuler:22.03-LTS-SP4
From an advisory covering 3 CVEs
 before 3.26.0-1.oe2203sp4
3.26.0-1.oe2203sp4
openCryptoki
SUSE:Linux Enterprise Module for Server Applications 15 SP7
 before 3.26.0-150700.5.9.1
3.26.0-150700.5.9.1
openCryptoki
SUSE:Linux Micro 6.2
From an advisory covering 2 CVEs
 before 3.26.0-160000.1.1
3.26.0-160000.1.1
openCryptoki
SUSE:Linux Enterprise Server 16.0
From an advisory covering 2 CVEs
 before 3.26.0-160000.1.1
3.26.0-160000.1.1
openCryptoki
SUSE:Linux Enterprise Server for SAP applications 16.0
From an advisory covering 2 CVEs
 before 3.26.0-160000.1.1
3.26.0-160000.1.1
openCryptoki
SUSE:Linux Micro 6.2
From an advisory covering 3 CVEs
 before 3.27.0-160000.1.1
3.27.0-160000.1.1
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Affected packages
PackageAffectedFixed
openCryptoki
SUSE:Linux Enterprise Server 16.0
From an advisory covering 3 CVEs
 before 3.27.0-160000.1.1
3.27.0-160000.1.1
openCryptoki
SUSE:Linux Enterprise Server for SAP applications 16.0
From an advisory covering 3 CVEs
 before 3.27.0-160000.1.1
3.27.0-160000.1.1
opencryptoki
Ubuntu:25.10
 All versions, plus listed versions
3.24.0+git20250128.0462717+dfsg-0ubuntu13.25.0+dfsg-0ubuntu1
 None known
opencryptoki
Ubuntu:26.04:LTS
 before 3.26.0+dfsg-0ubuntu1.1, plus listed versions
3.25.0+dfsg-0ubuntu13.26.0+dfsg-0ubuntu1
3.26.0+dfsg-0ubuntu1.1
opencryptoki
Ubuntu:26.04:LTS
From an advisory covering 3 CVEs
 before 3.26.0+dfsg-0ubuntu1.1, plus listed versions
3.25.0+dfsg-0ubuntu13.26.0+dfsg-0ubuntu1
3.26.0+dfsg-0ubuntu1.1
openCryptoki
openSUSE:Tumbleweed
 before 3.26.0-3.1
3.26.0-3.1
openCryptoki
openSUSE:Leap 16.0
From an advisory covering 2 CVEs
 before 3.26.0-160000.1.1
3.26.0-160000.1.1
openCryptoki
openSUSE:Leap 16.0
From an advisory covering 3 CVEs
 before 3.27.0-160000.1.1
3.27.0-160000.1.1

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-22791 is a medium vulnerability (CVSS 6.6) in Opencryptoki, published January 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.28%, the 21st percentile. Fixed in openCryptoki 3.26.0-150700.5.9.1.

References

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