Gnutls: gnutls: use-after-free in gnutls_pkcs11_token_set_pin

Summary

A flaw was found in GnuTLS. The `gnutls_pkcs11_token_set_pin` function, used for changing the Security Officer PIN, can lead to a use-after-free vulnerability. This occurs when an attacker attempts to change the PIN with a NULL old PIN for a token that lacks a protected authentication path.

Timeline

1. Jun 16, 2026, 12:49 AM UTCCVE published
2. Jun 16, 2026, 3:22 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: partial

3. Oct 14, 2026, 7:25 PM UTCRecord last updated

Affected versions

• gnutls

  0

• gnutls

  Version range not reported

• gnutls

  Version range not reported

• gnutls

  Version range not reported

• gnutls

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• gnutls

  Version range not reported

• libtasn1

  Version range not reported

• gnutls

  Version range not reported

• libtasn1

  Version range not reported

• gnutls

  Version range not reported

• libtasn1

  Version range not reported

• gnutls

  Version range not reported

• libtasn1

  Version range not reported

• gnutls

  Version range not reported

• libtasn1

  Version range not reported

• gnutls

  Version range not reported

• libtasn1

  Version range not reported

• gnutls

  Version range not reported

• gnutls

  Version range not reported

• gnutls

  Version range not reported

• gnutls

  Version range not reported

• cert-manager/jetstack-cert-manager-acmesolver-rhel9

  Version range not reported

• cert-manager/jetstack-cert-manager-rhel9

  Version range not reported

• cert-manager/cert-manager-operator-rhel9

  Version range not reported

• cert-manager/cert-manager-operator-bundle

  Version range not reported

• cert-manager/jetstack-cert-manager-acmesolver-rhel9

  Version range not reported

• cert-manager/jetstack-cert-manager-rhel9

  Version range not reported

• cert-manager/cert-manager-istio-csr-rhel9

  Version range not reported

• cert-manager/cert-manager-operator-rhel9

  Version range not reported

• cert-manager/cert-manager-operator-bundle

  Version range not reported

• cert-manager/cert-manager-trust-manager-rhel9

  Version range not reported

• discovery/discovery-server-rhel9

  Version range not reported

• discovery/discovery-ui-rhel9

  Version range not reported

• gnutls-main

  Version range not reported

• rhai/base-image-neuron-rhel9

  Version range not reported

• rhui5/cds-rhel9

  Version range not reported

• rhui5/haproxy-rhel9

  Version range not reported

• rhui5/installer-rhel9

  Version range not reported

• rhui5/rhua-rhel9

  Version range not reported

• rhui5/cds-kubernetes-tp-rhel9

  Version range not reported

• rhui5/installer-tp-rhel9

  Version range not reported

• rhui5/rhua-tp-rhel9

  Version range not reported

• gnutls

  Version range not reported

• openshift4/ose-hypershift-rhel9

  Version range not reported

• openshift/ose-rhel-coreos-8

  Version range not reported

• openshift/ose-rhel-coreos-9

  Version range not reported

References 25