matrix-sdk-base is vulnerable to DoS via custom m.room.join_rules event values

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2025-66622 · Microsoft / collected KEV context

EUVD-2025-201827

GHSA-jj6p-3m75-g2p3

RUSTSEC-2025-0135

cve-program · CVE-2025-66622

• https://github.com/matrix-org/matrix-rust-sdk/security/advisories/GHSA-jj6p-3m75-g2p3
• https://github.com/matrix-org/matrix-rust-sdk/pull/5924
• https://github.com/matrix-org/matrix-rust-sdk/commit/4ea0418abefab2aa93f8851a4d39c723e703e6b0
• https://rustsec.org/advisories/RUSTSEC-2025-0135.html

euvd · EUVD-2025-201827

• https://github.com/matrix-org/matrix-rust-sdk/security/advisories/GHSA-jj6p-3m75-g2p3
• https://github.com/matrix-org/matrix-rust-sdk/pull/5924
• https://github.com/matrix-org/matrix-rust-sdk/commit/4ea0418abefab2aa93f8851a4d39c723e703e6b0
• https://rustsec.org/advisories/RUSTSEC-2025-0135.html

nvd · CVE-2025-66622

• https://github.com/matrix-org/matrix-rust-sdk/commit/4ea0418abefab2aa93f8851a4d39c723e703e6b0
• https://github.com/matrix-org/matrix-rust-sdk/pull/5924
• https://github.com/matrix-org/matrix-rust-sdk/security/advisories/GHSA-jj6p-3m75-g2p3
• https://rustsec.org/advisories/RUSTSEC-2025-0135.html

osv · GHSA-jj6p-3m75-g2p3

• https://github.com/matrix-org/matrix-rust-sdk/security/advisories/GHSA-jj6p-3m75-g2p3
• https://nvd.nist.gov/vuln/detail/CVE-2025-66622
• https://github.com/matrix-org/matrix-rust-sdk/pull/5924
• https://github.com/matrix-org/matrix-rust-sdk/commit/4ea0418abefab2aa93f8851a4d39c723e703e6b0
• https://github.com/matrix-org/matrix-rust-sdk
• https://rustsec.org/advisories/RUSTSEC-2025-0135.html

osv · RUSTSEC-2025-0135

• https://crates.io/crates/matrix-sdk-base
• https://rustsec.org/advisories/RUSTSEC-2025-0135.html
• https://github.com/matrix-org/matrix-rust-sdk/pull/5924

No related operational record is retained in the current change model.