matrix-synapse vulnerabilities — 88 matching vulnerabilities

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Severity Vulnerability Package Ecosystem Disclosed Fixed version
5.3 medium CVE-2025-61672: Matrix Synapse Device Key Validation Vulnerability matrix-synapse PyPI 07 Jul 2026 1.138.3
7.1 high CVE-2025-30355: matrix-synapse Denial of Service via Malformed Events matrix-synapse PyPI 07 Jul 2026 1.127.1
4.3 medium CVE-2024-53867: matrix-synapse Partial Room State Leak via Sliding Sync matrix-synapse PyPI 07 Jul 2026 1.120.1
8.7 high CVE-2024-52815: matrix-synapse Malformed Invite Vulnerability Disrupts Sync Functionality matrix-synapse PyPI 07 Jul 2026 1.120.1
Unrated CVE-2024-53863: Matrix Synapse Thumbnail Processing Vulnerability matrix-synapse PyPI 07 Jul 2026 1.120.1
Unrated CVE-2024-52805: Matrix Synapse Memory Exhaustion Vulnerability Due to Unsupported Content Types matrix-synapse PyPI 07 Jul 2026 1.120.1
7.5 high CVE-2018-10657: Matrix Synapse Denial of Service Vulnerability matrix-synapse PyPI 06 Jul 2026 0.28.1
7.5 high CVE-2018-12423: Matrix Synapse Authorization Error Vulnerability matrix-synapse PyPI 06 Jul 2026 0.31.2
8.8 high CVE-2018-16515: Matrix Synapse Improper Signature Validation Vulnerability matrix-synapse PyPI 06 Jul 2026 0.33.2.1
7.5 high CVE-2018-12291: Matrix Synapse Security Filtering Flaw matrix-synapse PyPI 02 Jul 2026 0.31.1
5.3 medium CVE-2022-41952: Matrix Synapse Uncontrolled Resource Consumption Vulnerability matrix-synapse PyPI 02 Jul 2026 1.53.0
2.7 low CVE-2026-45076: matrix-synapse Vulnerability in Federated Rooms Preventing Full History Display matrix-synapse PyPI 28 May 2026 1.152.1
5.5 medium CVE-2026-45078: Matrix Synapse Denial of Service Vulnerability matrix-synapse PyPI 28 May 2026 1.152.1
6.9 medium CVE-2026-45076: Matrix Synapse Pagination Denial of Service Vulnerability matrix-synapse PyPI 14 May 2026 1.152.1
7.1 high CVE-2026-45078: Matrix Synapse CPU Starvation Denial of Service Vulnerability matrix-synapse PyPI 14 May 2026 1.152.1
5.3 medium CVE-2025-61672: Matrix-Synapse Device Key Validation Vulnerability matrix-synapse PyPI 08 Oct 2025 1.138.3
7.1 high CVE-2025-30355: Matrix Synapse Denial of Service via Malformed Events matrix-synapse PyPI 27 Mar 2025 1.127.1
4.3 medium CVE-2024-53867: Matrix Synapse Partial Room State Leak via Sliding Sync matrix-synapse PyPI 03 Dec 2024 1.120.1
High CVE-2024-53863: Matrix Synapse Thumbnail Processing Vulnerability matrix-synapse PyPI 03 Dec 2024 1.120.1
8.7 high CVE-2024-52815: Matrix Synapse Malformed Invite Vulnerability Disrupts Sync Functionality matrix-synapse PyPI 03 Dec 2024 1.120.1
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