# Matrix.org vulnerabilities Source: https://junglewise.ai/threats/vendors/matrix-org Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/vendors/matrix-org.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 15 vulnerabilities in Matrix.org: 1 in the last 7 days and 3 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, vodozemac Olm key ratchet memory exposure, was published on 6 November 2026. 1 vulnerability in the last four weeks, level on the four before (1). 3 technologies have a page of their own. ## Counts - Last 7 days: 1 - Last 30 days: 1 - Last 90 days: 3 - All time: 15 (0 critical, 0 exploited in the wild) ## About Matrix.org A non-profit foundation that develops and maintains the Matrix open standard for secure, decentralized real-time communication. ## Latest Matrix.org vulnerabilities - [vodozemac Olm key ratchet memory exposure](https://junglewise.ai/threats/rustsec-2026-0451-degraded-secret-zeroization-capabilities-e41f4f5c) (info, published 6 Nov 2026) - [matrix-sdk-crypto panic in custom to-device message encryption](https://junglewise.ai/threats/rustsec-2026-0318-sending-custom-to-device-messages-may-panics-10c285de) (info, published 29 Sep 2026) - [CVE-2026-45057: Matrix matrix-sdk-ui incomplete message edit validation](https://junglewise.ai/threats/cve-2026-45057-matrix-matrix-sdk-ui-incomplete-message-edit-validation) (medium, CVSS 4.9, published 11 Sep 2026) - [CVE-2026-63097: Matrix Dendrite improper access control in syncapi context endpoint](https://junglewise.ai/threats/cve-2026-63097-matrix-dendrite-improper-access-control-in-syncapi-context) (medium, CVSS 4.3, published 17 Jul 2026) - [CVE-2026-63096: Matrix.org Dendrite SSRF in legacy media download endpoint](https://junglewise.ai/threats/cve-2026-63096-matrix-org-dendrite-ssrf-in-legacy-media-download-endpoint) (medium, CVSS 5.8, published 17 Jul 2026) - [CVE-2026-63095: matrix-org Dendrite improper authorization in Matrix Client-Server API](https://junglewise.ai/threats/cve-2026-63095-matrix-org-dendrite-improper-authorization-in-matrix-client) (medium, CVSS 6.5, published 17 Jul 2026) - [CVE-2024-47824: Matrix React SDK information disclosure on room invitation](https://junglewise.ai/threats/cve-2024-47824-matrix-react-sdk-information-disclosure-on-room-invitation) (low, CVSS 3.1, published 15 Oct 2024) - [CVE-2024-39691: Matrix AppService IRC message content leak via timestamp spoofing](https://junglewise.ai/threats/cve-2024-39691-matrix-appservice-irc-message-content-leak-via-timestamp-spoofing) (low, CVSS 3.1, published 5 Jul 2024) - [CVE-2024-32000: Matrix IRC Bridge message content information disclosure](https://junglewise.ai/threats/cve-2024-32000-matrix-irc-bridge-message-content-information-disclosure) (low, CVSS 3.1, published 11 Apr 2024) - [CVE-2023-38690: Matrix matrix-appservice-irc IRC command injection via newlines](https://junglewise.ai/threats/cve-2023-38690-matrix-matrix-appservice-irc-irc-command-injection-via-newlines) (low, CVSS 3.1, published 4 Aug 2023) - [CVE-2023-38691: Matrix AppService Bridge OpenID token subject verification bypass](https://junglewise.ai/threats/cve-2023-38691-matrix-appservice-bridge-openid-token-subject-verification-bypass) (low, CVSS 3.1, published 4 Aug 2023) - [CVE-2023-30609: Matrix React SDK HTML injection in search results](https://junglewise.ai/threats/cve-2023-30609-matrix-react-sdk-html-injection-in-search-results) (low, CVSS 3.1, published 25 Apr 2023) - [CVE-2022-3971: Matrix-appservice-irc SQL injection via roomIds argument](https://junglewise.ai/threats/cve-2022-3971-matrix-appservice-irc-sql-injection-via-roomids-argument) (low, CVSS 3.1, published 13 Nov 2022) - [CVE-2022-39203: Matrix matrix-appservice-irc room takeover via channel name parsing](https://junglewise.ai/threats/cve-2022-39203-matrix-matrix-appservice-irc-room-takeover-via-channel-name) (low, CVSS 3.1, published 15 Sep 2022) - [CVE-2021-32622: Improper file handling in matrix-react-sdk](https://junglewise.ai/threats/cve-2021-32622-matrix-react-sdk-cross-site-scripting-in-file-preview) (low, CVSS 3.1, published 10 Feb 2022) ## Most severe Matrix.org vulnerabilities - [CVE-2026-63095: matrix-org Dendrite improper authorization in Matrix Client-Server API](https://junglewise.ai/threats/cve-2026-63095-matrix-org-dendrite-improper-authorization-in-matrix-client) (medium, CVSS 6.5, published 17 Jul 2026) - [CVE-2026-63096: Matrix.org Dendrite SSRF in legacy media download endpoint](https://junglewise.ai/threats/cve-2026-63096-matrix-org-dendrite-ssrf-in-legacy-media-download-endpoint) (medium, CVSS 5.8, published 17 Jul 2026) - [CVE-2026-45057: Matrix matrix-sdk-ui incomplete message edit validation](https://junglewise.ai/threats/cve-2026-45057-matrix-matrix-sdk-ui-incomplete-message-edit-validation) (medium, CVSS 4.9, published 11 Sep 2026) - [CVE-2026-63097: Matrix Dendrite improper access control in syncapi context endpoint](https://junglewise.ai/threats/cve-2026-63097-matrix-dendrite-improper-access-control-in-syncapi-context) (medium, CVSS 4.3, published 17 Jul 2026) - [CVE-2022-39203: Matrix matrix-appservice-irc room takeover via channel name parsing](https://junglewise.ai/threats/cve-2022-39203-matrix-matrix-appservice-irc-room-takeover-via-channel-name) (low, CVSS 3.1, published 15 Sep 2022) - [CVE-2024-47824: Matrix React SDK information disclosure on room invitation](https://junglewise.ai/threats/cve-2024-47824-matrix-react-sdk-information-disclosure-on-room-invitation) (low, CVSS 3.1, published 15 Oct 2024) - [CVE-2023-30609: Matrix React SDK HTML injection in search results](https://junglewise.ai/threats/cve-2023-30609-matrix-react-sdk-html-injection-in-search-results) (low, CVSS 3.1, published 25 Apr 2023) - [CVE-2022-3971: Matrix-appservice-irc SQL injection via roomIds argument](https://junglewise.ai/threats/cve-2022-3971-matrix-appservice-irc-sql-injection-via-roomids-argument) (low, CVSS 3.1, published 13 Nov 2022) - [CVE-2024-39691: Matrix AppService IRC message content leak via timestamp spoofing](https://junglewise.ai/threats/cve-2024-39691-matrix-appservice-irc-message-content-leak-via-timestamp-spoofing) (low, CVSS 3.1, published 5 Jul 2024) - [CVE-2023-38691: Matrix AppService Bridge OpenID token subject verification bypass](https://junglewise.ai/threats/cve-2023-38691-matrix-appservice-bridge-openid-token-subject-verification-bypass) (low, CVSS 3.1, published 4 Aug 2023) ## Vulnerabilities per week 1 vulnerability in the last four weeks, level on the four before (1). | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 1 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 1 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 1 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Matrix.org technologies - [Matrix.org Matrix Appservice IRC](https://junglewise.ai/threats/technologies/appservice-irc): 6 vulnerabilities - [Matrix.org Dendrite](https://junglewise.ai/threats/technologies/dendrite): 3 vulnerabilities - [Matrix.org React SDK](https://junglewise.ai/threats/technologies/react-sdk): 3 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Matrix.org vulnerabilities", https://junglewise.ai/threats/vendors/matrix-org, 9 November 2026.