Red Hat Product Errata RHSA-2026:24846 - Security Advisory Issued: 2026-06-09 Updated: 2026-06-09 RHSA-2026:24846 - Security Advisory Overview Updated Packages Synopsis Important: thunderbird security update Type/Severity Security Advisory: Important Red Hat Lightspeed patch analysis Identify and remediate systems affected by this advisory. View affected systems Topic An update for thunderbird is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Description Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fix(es): firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10.1 and Firefox 150.0.1 (CVE-2026-7323) firefox: thunderbird: Information disclosure due to incorrect boundary conditions in the Audio/Video component (CVE-2026-7320) firefox: thunderbird: Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1 (CVE-2026-7322) firefox: thunderbird: webrtc: Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component (CVE-2026-7321) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Solution For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Affected Products Red Hat Enterprise Linux Server - AUS 9.4 x86_64 Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.4 ppc64le Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.4 x86_64 Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.4 aarch64 Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.4 s390x Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.4 x86_64 Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.4 aarch64 Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.4 ppc64le Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.4 s390x Fixes BZ - 2463481 - CVE-2026-7323 firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10.1 and Firefox 150.0.1 BZ - 2463483 - CVE-2026-7320 firefox: thunderbird: Information disclosure due to incorrect boundary conditions in the Audio/Video component BZ - 2463484 - CVE-2026-7322 firefox: thunderbird: Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1 BZ - 2463485 - CVE-2026-7321 firefox: thunderbird: webrtc: Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component CVEs CVE-2026-7320 CVE-2026-7321 CVE-2026-7322 CVE-2026-7323 References https://access.redhat.com/security/updates/classification/#important Note: More recent versions of these packages may be available. Click a package name for more details. Red Hat Enterprise Linux Server - AUS 9.4 SRPM thunderbird-140.10.1-1.el9_4.src.rpm SHA-256: ddf385ae6fba788813fbfbf70b762845c958ae41fac020fe18d28564d6d2aa9f x86_64 thunderbird-140.10.1-1.el9_4.x86_64.rpm SHA-256: 354cfe3d019118dccda38b507bbf18de6397b2219f83309ec982949edda34411 thunderbird-debuginfo-140.10.1-1.el9_4.x86_64.rpm SHA-256: eeb9e9fd6e19a51cf906a53fc50c0e5e6035e391207f63d136e5cf1025447b05 thunderbird-debugsource-140.10.1-1.el9_4.x86_64.rpm SHA-256: 3b423511d3d7d9bb8d6aabb7bb8f8e9c104b043b0a6b9b1e95b6ff35cf49a0cf Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.4 SRPM thunderbird-140.10.1-1.el9_4.src.rpm SHA-256: ddf385ae6fba788813fbfbf70b762845c958ae41fac020fe18d28564d6d2aa9f ppc64le thunderbird-140.10.1-1.el9_4.ppc64le.rpm SHA-256: 4866b0963604a9cb52c236bef3f0806bbcbc77be88e883c7a7047b2d54688620 thunderbird-debuginfo-140.10.1-1.el9_4.ppc64le.rpm SHA-256: 6a6e4331c4fb0f76db7b13e02f864da01c12cc83f5009aaa1d451baf9a8e7611 thunderbird-debugsource-140.10.1-1.el9_4.ppc64le.rpm SHA-256: a09aa7fe5f4636e789e2298709fafd530db1bbfc2bfbf38c87085130a716134f Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.4 SRPM thunderbird-140.10.1-1.el9_4.src.rpm SHA-256: ddf385ae6fba788813fbfbf70b762845c958ae41fac020fe18d28564d6d2aa9f x86_64 thunderbird-140.10.1-1.el9_4.x86_64.rpm SHA-256: 354cfe3d019118dccda38b507bbf18de6397b2219f83309ec982949edda34411 thunderbird-debuginfo-140.10.1-1.el9_4.x86_64.rpm SHA-256: eeb9e9fd6e19a51cf906a53fc50c0e5e6035e391207f63d136e5cf1025447b05 thunderbird-debugsource-140.10.1-1.el9_4.x86_64.rpm SHA-256: 3b423511d3d7d9bb8d6aabb7bb8f8e9c104b043b0a6b9b1e95b6ff35cf49a0cf Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.4 SRPM thunderbird-140.10.1-1.el9_4.src.rpm SHA-256: ddf385ae6fba788813fbfbf70b762845c958ae41fac020fe18d28564d6d2aa9f aarch64 thunderbird-140.10.1-1.el9_4.aarch64.rpm SHA-256: b170428d186b8881877094094ce68e441a06c6e6b1275a85beac023e8251b15c thunderbird-debuginfo-140.10.1-1.el9_4.aarch64.rpm SHA-256: 88bfa6786391e4bf11c6db4f3b33aaa0f690c19c622be930860bb27dd8d38abf thunderbird-debugsource-140.10.1-1.el9_4.aarch64.rpm SHA-256: b6a16fa0f9bb43893af3197fd55e2d773c367f086b676a8200ee41ca82739da5 Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.4 SRPM thunderbird-140.10.1-1.el9_4.src.rpm SHA-256: ddf385ae6fba788813fbfbf70b762845c958ae41fac020fe18d28564d6d2aa9f s390x thunderbird-140.10.1-1.el9_4.s390x.rpm SHA-256: 7c584d7f4a6e3aad8806374c149ff64bd2cd9fc37b7ac5ddd1009fbb8a968bdd thunderbird-debuginfo-140.10.1-1.el9_4.s390x.rpm SHA-256: d80a6df74c46c3acaa56e890990c72351d4515ea24c9166ccc08c297b55e8bb9 thunderbird-debugsource-140.10.1-1.el9_4.s390x.rpm SHA-256: db8f69c1f8ea1b81f3a114eaba4aa55825755c5c1395ca12276a190cbcb44e64 Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.4 SRPM thunderbird-140.10.1-1.el9_4.src.rpm SHA-256: ddf385ae6fba788813fbfbf70b762845c958ae41fac020fe18d28564d6d2aa9f x86_64 thunderbird-140.10.1-1.el9_4.x86_64.rpm SHA-256: 354cfe3d019118dccda38b507bbf18de6397b2219f83309ec982949edda34411 thunderbird-debuginfo-140.10.1-1.el9_4.x86_64.rpm SHA-256: eeb9e9fd6e19a51cf906a53fc50c0e5e6035e391207f63d136e5cf1025447b05 thunderbird-debugsource-140.10.1-1.el9_4.x86_64.rpm SHA-256: 3b423511d3d7d9bb8d6aabb7bb8f8e9c104b043b0a6b9b1e95b6ff35cf49a0cf Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.4 SRPM thunderbird-140.10.1-1.el9_4.src.rpm SHA-256: ddf385ae6fba788813fbfbf70b762845c958ae41fac020fe18d28564d6d2aa9f aarch64 thunderbird-140.10.1-1.el9_4.aarch64.rpm SHA-256: b170428d186b8881877094094ce68e441a06c6e6b1275a85beac023e8251b15c thunderbird-debuginfo-140.10.1-1.el9_4.aarch64.rpm SHA-256: 88bfa6786391e4bf11c6db4f3b33aaa0f690c19c622be930860bb27dd8d38abf thunderbird-debugsource-140.10.1-1.el9_4.aarch64.rpm SHA-256: b6a16fa0f9bb43893af3197fd55e2d773c367f086b676a8200ee41ca82739da5 Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.4 SRPM thunderbird-140.10.1-1.el9_4.src.rpm SHA-256: ddf385ae6fba788813fbfbf70b762845c958ae41fac020fe18d28564d6d2aa9f ppc64le thunderbird-140.10.1-1.el9_4.ppc64le.rpm SHA-256: 4866b0963604a9cb52c236bef3f0806bbcbc77be88e883c7a7047b2d54688620 thunderbird-debuginfo-140.10.1-1.el9_4.ppc64le.rpm SHA-256: 6a6e4331c4fb0f76db7b13e02f864da01c12cc83f5009aaa1d451baf9a8e7611 thunderbird-debugsource-140.10.1-1.el9_4.ppc64le.rpm SHA-256: a09aa7fe5f4636e789e2298709fafd530db1bbfc2bfbf38c87085130a716134f Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.4 SRPM thunderbird-140.10.1-1.el9_4.src.rpm SHA-256: ddf385ae6fba788813fbfbf70b762845c958ae41fac020fe18d28564d6d2aa9f s390x thunderbird-140.10.1-1.el9_4.s390x.rpm SHA-256: 7c584d7f4a6e3aad8806374c149ff64bd2cd9fc37b7ac5ddd1009fbb8a968bdd thunderbird-debuginfo-140.10.1-1.el9_4.s390x.rpm SHA-256: d80a6df74c46c3acaa56e890990c72351d4515ea24c9166ccc08c297b55e8bb9 thunderbird-debugsource-140.10.1-1.el9_4.s390x.rpm SHA-256: db8f69c1f8ea1b81f3a114eaba4aa55825755c5c1395ca12276a190cbcb44e64 The Red Hat security contact is secalert@redhat.com . More contact details at https://access.redhat.com/security/team/contact/ .