--- id: CVE-2026-42014 title: A flaw was found in GnuTLS 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 f… severity: medium cvss: 6.6 cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H' cwe: - CWE-825 vendor: Red Hat product: gnutls affected: - gnutls all versions - gnutls (all versions) - gnutls (all versions) - gnutls (all versions) - gnutls (all versions) - gnutls (all versions) - gnutls (all versions) - libtasn1 (all versions) - gnutls (all versions) - libtasn1 (all versions) - gnutls (all versions) - libtasn1 (all versions) - gnutls (all versions) - libtasn1 (all versions) - gnutls (all versions) - libtasn1 (all versions) - gnutls (all versions) - libtasn1 (all versions) - gnutls (all versions) - gnutls (all versions) - gnutls (all versions) - gnutls (all versions) - gnutls (all versions) - cert-manager/cert-manager-trust-manager-rhel9 (all versions) - discovery/discovery-server-rhel9 (all versions) - discovery/discovery-ui-rhel9 (all versions) - gnutls-main (all versions) - rhui5/cds-rhel9 (all versions) - rhui5/haproxy-rhel9 (all versions) - rhui5/installer-rhel9 (all versions) - rhui5/rhua-rhel9 (all versions) - rhui5/cds-kubernetes-tp-rhel9 (all versions) - rhui5/installer-tp-rhel9 (all versions) - rhui5/rhua-tp-rhel9 (all versions) - gnutls - openshift4/ose-hypershift-rhel9 - openshift/ose-rhel-coreos-8 (all versions) - openshift/ose-rhel-coreos-9 (all versions) patched: - enterprise_linux_server_v_7_els - enterprise_linux_appstream_eus_v_10_0 - enterprise_linux_appstream_v_10 - enterprise_linux_appstream_v_8 - enterprise_linux_appstream_aus_v_8_4 - enterprise_linux_appstream_eus_extension_v_8_4 - enterprise_linux_appstream_aus_v_8_6 - enterprise_linux_appstream_eus_extension_v_8_6 - enterprise_linux_appstream_e4s_v_8_8 - enterprise_linux_appstream_tus_v_8_8 - enterprise_linux_appstream_e4s_v_9_2 - enterprise_linux_appstream_e4s_v_9_4 - enterprise_linux_appstream_eus_v_9_6 - enterprise_linux_appstream_v_9 - enterprise_linux_baseos_eus_v_10_0 - enterprise_linux_baseos_v_10 - enterprise_linux_baseos_v_8 - enterprise_linux_baseos_aus_v_8_4 - enterprise_linux_baseos_eus_extension_v_8_4 - enterprise_linux_baseos_aus_v_8_6 - enterprise_linux_baseos_eus_extension_v_8_6 - enterprise_linux_baseos_e4s_v_8_8 - enterprise_linux_baseos_tus_v_8_8 - enterprise_linux_baseos_e4s_v_9_2 - enterprise_linux_baseos_e4s_v_9_4 - enterprise_linux_baseos_eus_v_9_6 - enterprise_linux_baseos_v_9 - cert_manager_support_for_red_hat_openshift_release 1.20 - discovery 2 - hardened_images - update_infrastructure 5 published: '2026-06-16' updated: '2026-10-14' sourceUpdated: '2026-10-14T20:17:43.410' source: NVD sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-42014' references: - url: 'https://access.redhat.com/errata/RHSA-2026:13274' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:20611' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:20612' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:20613' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:26319' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:26409' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:29197' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:30004' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:30849' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:30850' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:32962' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:33125' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:41921' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:43575' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:58981' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:72502' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:74674' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:82304' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:82322' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:82347' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:82354' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:82372' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:82857' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:82888' label: secalert@redhat.com - url: 'https://access.redhat.com/security/cve/CVE-2026-42014' label: secalert@redhat.com - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2467451' label: secalert@redhat.com - url: 'https://gitlab.com/gnutls/gnutls/-/issues/1766' label: secalert@redhat.com - url: 'https://www.gnutls.org/security-new.html#GNUTLS-SA-2026-04-29-9' label: secalert@redhat.com - url: >- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42014.json - url: 'https://www.cve.org/CVERecord?id=CVE-2026-42014' - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-42014' tags: - nvd - cve.org - csaf - vex - red-hat epss: 0.0015 epssPercentile: 0.04123 ssvc: exploitation: none automatable: 'no' technicalImpact: partial timestamp: '2026-06-16T15:22:20.545240Z' ingestedAt: '2026-06-29T13:42:11.968Z' --- ## Overview 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. ## Remediation Refer to the linked advisories for vendor-supplied fixes and affected version ranges. ## Vendor advisories - **RHSA-2026:43575** · Red Hat · fixed in: Red Hat Enterprise Linux Server (v. 7 ELS) · released 2026-07-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:43575) - **RHSA-2026:26409** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux BaseOS EUS (v. 10.0) · released 2026-06-16 · [advisory](https://access.redhat.com/errata/RHSA-2026:26409) - **RHSA-2026:20613** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10) · released 2026-05-26 · [advisory](https://access.redhat.com/errata/RHSA-2026:20613) - **RHSA-2026:20611** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux BaseOS (v. 8) · released 2026-05-26 · [advisory](https://access.redhat.com/errata/RHSA-2026:20611) - **RHSA-2026:33125** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4), Red Hat Enterprise Linux BaseOS AUS (v.8.4), Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) · released 2026-06-29 · [advisory](https://access.redhat.com/errata/RHSA-2026:33125) - **RHSA-2026:30849** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6), Red Hat Enterprise Linux BaseOS AUS (v.8.6), Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) · released 2026-06-29 · [advisory](https://access.redhat.com/errata/RHSA-2026:30849) - **RHSA-2026:30850** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8), Red Hat Enterprise Linux BaseOS E4S (v.8.8), Red Hat Enterprise Linux BaseOS TUS (v.8.8) · released 2026-06-29 · [advisory](https://access.redhat.com/errata/RHSA-2026:30850) - **RHSA-2026:41921** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.2), Red Hat Enterprise Linux BaseOS E4S (v.9.2) · released 2026-07-20 · [advisory](https://access.redhat.com/errata/RHSA-2026:41921) - **RHSA-2026:32962** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.4), Red Hat Enterprise Linux BaseOS E4S (v.9.4) · released 2026-06-29 · [advisory](https://access.redhat.com/errata/RHSA-2026:32962) - **RHSA-2026:30004** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v.9.6), Red Hat Enterprise Linux BaseOS EUS (v.9.6) · released 2026-06-25 · [advisory](https://access.redhat.com/errata/RHSA-2026:30004) - **RHSA-2026:20612** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9) · released 2026-05-26 · [advisory](https://access.redhat.com/errata/RHSA-2026:20612) - **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 6, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat OpenShift Container Platform 4 · updated 2026-10-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42014.json)