CVE-2025-66622
matrix-sdk-base is vulnerable to DoS via custom m.room.join_rules event values
Description
matrix-sdk-base is the base component to build a Matrix client library. Versions 0.14.1 and prior are unable to handle responses that include custom m.room.join_rules values due to a serialization bug. This can be exploited to cause a denial-of-service condition, if a user is invited to a room with non-standard join rules, the crate's sync process will stall, preventing further processing for all rooms. This is fixed in version 0.16.0.
No summary for this CVE yet.
Weaknesses
Affected Products
matrix-org
oss-project·DEaka matrix appservice irc, synapse, matrix-js-sdk
crates.io
package-ecosystem
Exploitability
Official Patch Available
References
https://github.com/matrix-org/matrix-rust-sdk/security/advisories/GHSA-jj6p-3m75-g2p3
github.com
https://github.com/matrix-org/matrix-rust-sdk/pull/5924
github.com
https://github.com/matrix-org/matrix-rust-sdk/commit/4ea0418abefab2aa93f8851a4d39c723e703e6b0
github.com
and 3 more references View all →
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