OESA-2026-2465

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Source

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-2465

Import Source

https://repo.openeuler.org/security/data/osv/OESA-2026-2465.json

JSON Data

https://api.osv.dev/v1/vulns/OESA-2026-2465

Upstream

CVE-2026-8388

CVE-2026-8391

CVE-2026-8401

CVE-2026-8946

CVE-2026-8947

CVE-2026-8949

CVE-2026-8950

CVE-2026-8953

CVE-2026-8954

CVE-2026-8955

CVE-2026-8956

CVE-2026-8957

CVE-2026-8958

CVE-2026-8959

CVE-2026-8961

CVE-2026-8962

CVE-2026-8968

CVE-2026-8970

CVE-2026-8974

CVE-2026-8975

Published

2026-05-29T13:33:26Z

Modified

2026-05-29T13:45:17.154355014Z

Summary

firefox security update

Details

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. %if 0 %global mozdebugprefix /lib/debug %global mozdebugdir /lib/debug/ %global unamem %(uname -m) %global symbolsfilename -.en-US.-%(uname.crashreporter-symbols.zip %global symbolsfilepath /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip %global finddebuginfoopts -p /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip -o debugcrashreporter.list %global crashreporterpkgname mozilla-crashreporter--debuginfo

Security Fix(es):

A critical vulnerability has been discovered in Mozilla Firefox browser versions up to 150.0.2, classified as CWE-119 buffer error. The vulnerability allows the product to read from or write to memory locations outside the intended boundary of the buffer when performing operations on a memory buffer. This vulnerability affects confidentiality, integrity, and availability. Upgrading to version 150.0.3 eliminates this vulnerability.(CVE-2026-8388)

A vulnerability was found in Mozilla Firefox up to 150.0.2 (Web Browser). It has been declared as critical. As an impact it is known to affect confidentiality, integrity, and availability. Upgrading to version 150.0.3 eliminates this vulnerability.(CVE-2026-8391)

A sandbox escape vulnerability exists in the Profile Backup component of Mozilla Firefox. This vulnerability affects Firefox versions up to 150.0.2 and was fixed in version 150.0.3. An attacker could potentially exploit this vulnerability to bypass sandbox protections, impacting the confidentiality, integrity, and availability of the system.(CVE-2026-8401)

Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, and Firefox ESR 140.11.(CVE-2026-8946)

Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, and Firefox ESR 140.11.(CVE-2026-8947)

Integer overflow in the Widget: Win32 component. This vulnerability was fixed in Firefox 151 and Firefox ESR 140.11.(CVE-2026-8949)

Same-origin policy bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 151 and Firefox ESR 140.11.(CVE-2026-8950)

Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, and Firefox ESR 140.11.(CVE-2026-8953)

Incorrect boundary conditions, integer overflow in the Audio/Video component. This vulnerability was fixed in Firefox 151 and Firefox ESR 140.11.(CVE-2026-8954)

Privilege escalation in the DOM: Workers component. This vulnerability was fixed in Firefox 151 and Firefox ESR 140.11.(CVE-2026-8955)

Integer overflow in the Networking: JAR component. This vulnerability was fixed in Firefox 151 and Firefox ESR 140.11.(CVE-2026-8956)

Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 151 and Firefox ESR 140.11.(CVE-2026-8957)

Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 151 and Firefox ESR 140.11.(CVE-2026-8958)

Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component. This vulnerability was fixed in Firefox 151 and Firefox ESR 140.11.(CVE-2026-8959)

Spoofing issue in the Form Autofill component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.(CVE-2026-8961)

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.(CVE-2026-8962)

Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151 and Firefox ESR 140.11.(CVE-2026-8968)

Privilege escalation in the Security component. This vulnerability was fixed in Firefox 151 and Firefox ESR 140.11.(CVE-2026-8970)

Memory safety bugs present in Firefox ESR 140.10 and Firefox 150. 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 was fixed in Firefox 151 and Firefox ESR 140.11.(CVE-2026-8974)

Memory safety bugs present in Firefox ESR 115.35, Firefox ESR 140.10 and Firefox 150. 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 was fixed in Firefox 151, Firefox ESR 115.36, and Firefox ESR 140.11.(CVE-2026-8975)

Database specific

{
    "severity": "Critical"
}

References

Affected packages

openEuler:24.03-LTS-SP1 / firefox

Package

Name: firefox
Purl: pkg:rpm/openEuler/firefox&distro=openEuler-24.03-LTS-SP1

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

140.11.0-1.oe2403sp1

Ecosystem specific

{
    "aarch64": [
        "firefox-140.11.0-1.oe2403sp1.aarch64.rpm",
        "firefox-debuginfo-140.11.0-1.oe2403sp1.aarch64.rpm",
        "firefox-debugsource-140.11.0-1.oe2403sp1.aarch64.rpm"
    ],
    "src": [
        "firefox-140.11.0-1.oe2403sp1.src.rpm"
    ],
    "x86_64": [
        "firefox-140.11.0-1.oe2403sp1.x86_64.rpm",
        "firefox-debuginfo-140.11.0-1.oe2403sp1.x86_64.rpm",
        "firefox-debugsource-140.11.0-1.oe2403sp1.x86_64.rpm"
    ]
}

Database specific

source

"https://repo.openeuler.org/security/data/osv/OESA-2026-2465.json"