CVE Explorer
CVE-2025-66622
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.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"matrix-rust-sdk","vendor":"matrix-org","versions":[{"status":"affected","version":"< 0.16.0"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:ed79b114223c53152353ed6be969d1c0558a2e9d56f220efca97380f4f648d80 · sha256:b2a1f6cfce86575f… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":1.3,"baseSeverity":"LOW","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:ed79b114223c53152353ed6be969d1c0558a2e9d56f220efca97380f4f648d80 · sha256:b2a1f6cfce86575f… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-755","description":"CWE-755: Improper Handling of Exceptional Conditions","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:ed79b114223c53152353ed6be969d1c0558a2e9d56f220efca97380f4f648d80 · sha256:b2a1f6cfce86575f… · /containers/cna/problemTypes/0/descriptions/0
Source references
4 source assertions{"name":"https://github.com/matrix-org/matrix-rust-sdk/commit/4ea0418abefab2aa93f8851a4d39c723e703e6b0","tags":["x_refsource_MISC"],"url":"https://github.com/matrix-org/matrix-rust-sdk/commit/4ea0418abefab2aa93f8851a4d39c723e703e6b0"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ed79b114223c53152353ed6be969d1c0558a2e9d56f220efca97380f4f648d80 · sha256:b2a1f6cfce86575f… · /containers/cna/references/2
{"name":"https://github.com/matrix-org/matrix-rust-sdk/pull/5924","tags":["x_refsource_MISC"],"url":"https://github.com/matrix-org/matrix-rust-sdk/pull/5924"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ed79b114223c53152353ed6be969d1c0558a2e9d56f220efca97380f4f648d80 · sha256:b2a1f6cfce86575f… · /containers/cna/references/1
{"name":"https://github.com/matrix-org/matrix-rust-sdk/security/advisories/GHSA-jj6p-3m75-g2p3","tags":["x_refsource_CONFIRM"],"url":"https://github.com/matrix-org/matrix-rust-sdk/security/advisories/GHSA-jj6p-3m75-g2p3"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ed79b114223c53152353ed6be969d1c0558a2e9d56f220efca97380f4f648d80 · sha256:b2a1f6cfce86575f… · /containers/cna/references/0
{"name":"https://rustsec.org/advisories/RUSTSEC-2025-0135.html","tags":["x_refsource_MISC"],"url":"https://rustsec.org/advisories/RUSTSEC-2025-0135.html"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ed79b114223c53152353ed6be969d1c0558a2e9d56f220efca97380f4f648d80 · sha256:b2a1f6cfce86575f… · /containers/cna/references/3
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.