{"id":"CVE-2026-42015","title":"A flaw was found in gnutls","summary":"A flaw was found in gnutls. An off-by-one error exists in the PKCS#12 bag element bounds check. This vulnerability allows an remote attacker to write past the internal array of a PKCS#12 bag when appending to a bag that already contains …","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","cwe":["CWE-193"],"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":"2026-05-26","updated":"2026-10-14","sourceUpdated":"2026-10-14T20:17:43.807","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-42015","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-2026-42015","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2467678","label":"secalert@redhat.com"},{"url":"https://www.gnutls.org/security-new.html#GNUTLS-SA-2026-04-29-11","label":"secalert@redhat.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42015.json"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-42015"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42015"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00727,"epssPercentile":0.53955,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-05-27T12:47:07.830892Z"},"ingestedAt":"2026-06-29T13:42:11.962Z","slug":"CVE-2026-42015","body":"## Overview\n\nA flaw was found in gnutls. An off-by-one error exists in the PKCS#12 bag element bounds check. This vulnerability allows an remote attacker to write past the internal array of a PKCS#12 bag when appending to a bag that already contains 32 elements. This memory corruption could lead to a denial of service (DoS) or potentially other unspecified impacts.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **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)\n- **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)\n- **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)\n- **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)\n- **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)\n- **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)\n- **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)\n- **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)\n- **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)\n- **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)\n- **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)\n- **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 2026-10-02 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42015.json)","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}