CVE-2022-39236

Matrix Javascript SDK is the Matrix Client-Server SDK for JavaScript. Starting with version 17.1.0-rc.1, improperly formed beacon events can disrupt or impede the matrix-js-sdk from functioning properly, potentially impacting the consumer's ability to process data safely. Note that the matrix-js-sdk can appear to be operating normally but be excluding or corrupting runtime data presented to the consumer. This is patched in matrix-js-sdk v19.7.0. Redacting applicable events, waiting for the sync processor to store data, and restarting the client are possible workarounds. Alternatively, redacting the applicable events and clearing all storage will fix the further perceived issues. Downgrading to an unaffected version, noting that such a version may be subject to other vulnerabilities, will additionally resolve the issue.

• CWE-20

• https://github.com/matrix-org/matrix-js-sdk/commit/a587d7c36026fe1fcf93dfff63588abee359be76Patch, Third Party Advisory
• https://github.com/matrix-org/matrix-js-sdk/releases/tag/v19.7.0Release Notes, Third Party Advisory
• https://github.com/matrix-org/matrix-js-sdk/security/advisories/GHSA-hvv8-5v86-r45xThird Party Advisory
• https://github.com/matrix-org/matrix-spec-proposals/pull/3488Patch, Third Party Advisory
• https://security.gentoo.org/glsa/202210-35Third Party Advisory
• https://github.com/matrix-org/matrix-js-sdk/commit/a587d7c36026fe1fcf93dfff63588abee359be76Patch, Third Party Advisory
• https://github.com/matrix-org/matrix-js-sdk/releases/tag/v19.7.0Release Notes, Third Party Advisory
• https://github.com/matrix-org/matrix-js-sdk/security/advisories/GHSA-hvv8-5v86-r45xThird Party Advisory
• https://github.com/matrix-org/matrix-spec-proposals/pull/3488Patch, Third Party Advisory
• https://security.gentoo.org/glsa/202210-35Third Party Advisory

Published

Sep 28, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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