The vulnerability in the WebCodecs API interface of Mozilla Firefox, Firefox ESR, and the email client Thunderbird allows a hacker to induce a service failure.

The vulnerability in the WebCodecs API interface of Mozilla Firefox, Firefox ESR, and the email client Thunderbird is related to the use of uninitialized variables. Exploiting this vulnerability could allow a remote attacker to cause service interruptions...

RHEL 8 : firefox (RHSA-2026:26629)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:26629 advisory. Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. Security Fixes: firefox:...

RHEL 9 : firefox (RHSA-2026:26491)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:26491 advisory. Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. Security Fixes: firefox:...

CVE-2026-11683

An use after free flaw was found in the WebCodecs component of the Chromium browser. Upstream bugs: https://code.google.com/p/chromium/issues/detail?id=517129549...

SUSE CVE-2026-11683

Use after free in WebCodecs in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. Chromium security severity: High...

EUVD-2026-35209

Use after free in WebCodecs in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. Chromium security severity: High...

CVE-2026-11683

Use after free in WebCodecs in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. Chromium security severity: High...

DEBIAN-CVE-2026-11683

Use after free in WebCodecs in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. Chromium security severity: High...

Linux Distros Unpatched Vulnerability : CVE-2026-11683

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Use after free in WebCodecs in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML pag...

CVE-2026-11683

Use after free in WebCodecs in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. Chromium security severity: High...

CVE-2026-11683

Use after free in WebCodecs in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. Chromium security severity: High...

CVE-2026-11683

Use after free in WebCodecs in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. Chromium security severity: High...

CVE-2026-11683

Use after free in WebCodecs in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. Chromium security severity: High...

Important: firefox

Issue Overview: Three inter-frame chunk discard paths in the push-mode APNG parser clear the chunk-header flag without consuming the chunk body and CRC, allowing attacker-controlled bytes inside an ignored ancillary chunk to be reinterpreted as a fresh chunk header on the next call to...

Important: thunderbird

Issue Overview: Three inter-frame chunk discard paths in the push-mode APNG parser clear the chunk-header flag without consuming the chunk body and CRC, allowing attacker-controlled bytes inside an ignored ancillary chunk to be reinterpreted as a fresh chunk header on the next call to...

Amazon Linux 2023 : firefox (ALAS2023-2026-1793)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1793 advisory. Three inter-frame chunk discard paths in the push-mode APNG parser clear the chunk-header flag without consuming the chunk body and CRC, allowing attacker-controlled bytes inside an ignored...

PT-2026-47509

Name of the Vulnerable Software and Affected Versions Google Chrome versions prior to 149.0.7827.103 Description A use after free issue in WebCodecs allows a remote attacker to execute arbitrary code inside a sandbox by using a crafted HTML page. Use after free is a memory corruption flaw that...

Google Chrome 资源管理错误漏洞

Google Chrome is a web browser developed by the American company Google. Google Chrome has a resource management vulnerability, which stems from the reuse of WebCodecs after they are released...

Уязвимость интерфейса WebCodecs браузеров Google Chrome и Microsoft Edge, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации

Уязвимость интерфейса WebCodecs браузеров Google Chrome и Microsoft Edge связана с ошибками при инициализации переменных. Эксплуатация уязвимости может позволить нарушителю, действующему удалённо, получить несанкционированный доступ к защищаемой информации...

Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component CVE-2026-8388 firefox: Other issue in the JavaScript Engine component CVE-2026-8391 firefox: Sandbox escape in the Profile Backup component...