CVE-2026-20719

The record

Mattermost versions 11.4.x <= 11.4.0, 11.3.x <= 11.3.1, 11.2.x <= 11.2.3, 10.11.x <= 10.11.11 fail to prevent rendering of external SVGs on link embeds which allows unauthenticated users to crash the Mattermost webapp and desktop app via creating an issue or PR on GitHub.. Mattermost Advisory ID: MMSA-2026-00595

Affected packages

Related vulnerabilities

• CVE-2026-100352 kin-openapi is a Go project for handling OpenAPI files. CWE-754
• CVE-2026-98161 In the Linux kernel, the following vulnerability has been resolved: nvdimm: pmem: keep… CWE-754
• CVE-2026-77411 RabbitMQ amqp091-go is a Go AMQP 0.9.1 client. CWE-754
• CVE-2026-87645 Improper state validation in Safebrowsing in Google Chrome prior to 153.0.8010.36 allowed… CWE-754
• CVE-2026-87548 Improper state validation in Installer in Google Chrome prior to 153.0.8010.36 allowed a… CWE-754
• CVE-2026-87532 Improper state validation in Safebrowsing in Google Chrome prior to 153.0.8010.36 allowed… CWE-754
• CVE-2026-73314 XenForo before 2.3.13 contains a signature verification logic error in the PayPal REST… CWE-754
• CVE-2026-85014 undici's experimental WebSocketStream client crashes the whole Node.js process when a… CWE-754