OESA-2026-1874

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Source

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-1874

Import Source

https://repo.openeuler.org/security/data/osv/OESA-2026-1874.json

JSON Data

https://api.osv.dev/v1/vulns/OESA-2026-1874

Upstream

CVE-2026-5731

CVE-2026-5732

CVE-2026-5734

Published

2026-04-11T11:10:53Z

Modified

2026-08-18T01:19:46Z

Severity

9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

firefox security update

Details

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. %if 0 %global moz_debug_prefix /lib/debug %global moz_debug_dir /lib/debug/ %global uname_m %(uname -m) %global symbols_file_name -.en-US.-%(uname.crashreporter-symbols.zip %global symbols_file_path /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip %global _find_debuginfo_opts -p /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip -o debugcrashreporter.list %global crashreporter_pkg_name mozilla-crashreporter--debuginfo

Security Fix(es):

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149.0.2, Firefox ESR < 115.34.1, and Firefox ESR < 140.9.1.(CVE-2026-5731)

Incorrect boundary conditions, integer overflow in the Graphics: Text component. This vulnerability affects Firefox < 149.0.2 and Firefox ESR < 140.9.1.(CVE-2026-5732)

Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149.0.2 and Firefox ESR < 140.9.1.(CVE-2026-5734)

Database specific

{
    "severity": "Critical"
}

References

Affected packages

openEuler:24.03-LTS / firefox

Package

Name: firefox
Purl: pkg:rpm/openEuler/firefox&distro=openEuler-24.03-LTS

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

140.9.1-1.oe2403

Ecosystem specific

{
    "aarch64": [
        "firefox-140.9.1-1.oe2403.aarch64.rpm",
        "firefox-debuginfo-140.9.1-1.oe2403.aarch64.rpm",
        "firefox-debugsource-140.9.1-1.oe2403.aarch64.rpm"
    ],
    "src": [
        "firefox-140.9.1-1.oe2403.src.rpm"
    ],
    "x86_64": [
        "firefox-140.9.1-1.oe2403.x86_64.rpm",
        "firefox-debuginfo-140.9.1-1.oe2403.x86_64.rpm",
        "firefox-debugsource-140.9.1-1.oe2403.x86_64.rpm"
    ]
}

Database specific

source

"https://repo.openeuler.org/security/data/osv/OESA-2026-1874.json"