Matrix Rust Sdk

1 CVEs product

Monthly

CVE-2025-66622 HIGH PATCH This Week

A serialization bug in matrix-sdk-base allows remote attackers to cause denial-of-service by sending rooms with custom m.room.join_rules values, which stalls the sync process and prevents all room processing. The vulnerability affects matrix-sdk-base versions 0.14.1 and prior and has a high availability impact (CVSS 7.5) with a patch available in version 0.16.0. With a low EPSS score of 0.06% and no KEV listing, this represents a moderate real-world risk primarily concerning service availability rather than active exploitation.

Denial Of Service Deserialization Python Matrix Rust Sdk
NVD GitHub VulDB
CVSS 3.1
7.5
EPSS
0.1%
CVE-2025-66622
EPSS 0% CVSS 7.5
HIGH PATCH This Week

A serialization bug in matrix-sdk-base allows remote attackers to cause denial-of-service by sending rooms with custom m.room.join_rules values, which stalls the sync process and prevents all room processing. The vulnerability affects matrix-sdk-base versions 0.14.1 and prior and has a high availability impact (CVSS 7.5) with a patch available in version 0.16.0. With a low EPSS score of 0.06% and no KEV listing, this represents a moderate real-world risk primarily concerning service availability rather than active exploitation.

Denial Of Service Deserialization Python +1
NVD GitHub VulDB

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