An update for thunderbird is now available for openEuler-24.03-LTS-SP4 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2026-3093 Final 1.0 1.0 2026-07-19 Initial 2026-07-19 2026-07-19 openEuler SA Tool V1.0 2026-07-19 thunderbird security update An update for thunderbird is now available for openEuler-24.03-LTS-SP4 Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fix(es): A malicious LDAP server, which a Thunderbird user is configured to query for address-book autocomplete, can stash arbitrarily large amounts of attacker-supplied data into the Thunderbird LDAP client until it crashes due to memory exhaustion. This vulnerability was fixed in Thunderbird 152.0.1 and Thunderbird 140.12.1.(CVE-2026-57962) An attacker who can send HTML chat messages (via Matrix or XMPP) can inject arbitrary styled content, phishing links, and CSS that manipulates the chat UI. This vulnerability was fixed in Thunderbird 152.0.1 and Thunderbird 140.12.1.(CVE-2026-57963) An update for thunderbird is now available for openEuler-24.03-LTS-SP4. openEuler Security has rated this update as having a security impact of medium. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. Medium thunderbird https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3093 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-57962 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-57963 https://nvd.nist.gov/vuln/detail/CVE-2026-57962 https://nvd.nist.gov/vuln/detail/CVE-2026-57963 openEuler-24.03-LTS-SP4 thunderbird-140.12.1-1.oe2403sp4.aarch64.rpm thunderbird-debuginfo-140.12.1-1.oe2403sp4.aarch64.rpm thunderbird-debugsource-140.12.1-1.oe2403sp4.aarch64.rpm thunderbird-librnp-rnp-140.12.1-1.oe2403sp4.aarch64.rpm thunderbird-wayland-140.12.1-1.oe2403sp4.aarch64.rpm thunderbird-140.12.1-1.oe2403sp4.src.rpm thunderbird-140.12.1-1.oe2403sp4.x86_64.rpm thunderbird-debuginfo-140.12.1-1.oe2403sp4.x86_64.rpm thunderbird-debugsource-140.12.1-1.oe2403sp4.x86_64.rpm thunderbird-librnp-rnp-140.12.1-1.oe2403sp4.x86_64.rpm thunderbird-wayland-140.12.1-1.oe2403sp4.x86_64.rpm A malicious LDAP server, which a Thunderbird user is configured to query for address-book autocomplete, can stash arbitrarily large amounts of attacker-supplied data into the Thunderbird LDAP client until it crashes due to memory exhaustion. This vulnerability was fixed in Thunderbird 152.0.1 and Thunderbird 140.12.1. 2026-07-19 CVE-2026-57962 openEuler-24.03-LTS-SP4 Medium 5.3 AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H thunderbird security update 2026-07-19 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3093 An attacker who can send HTML chat messages (via Matrix or XMPP) can inject arbitrary styled content, phishing links, and CSS that manipulates the chat UI. This vulnerability was fixed in Thunderbird 152.0.1 and Thunderbird 140.12.1. 2026-07-19 CVE-2026-57963 openEuler-24.03-LTS-SP4 Medium 6.5 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N thunderbird security update 2026-07-19 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3093