{"id":"CVE-2025-24903","summary":"libsignal-service-rs Doesn't Check Origin of Sync Messages","details":"libsignal-service-rs is a Rust version of the libsignal-service-java library which implements the core functionality to communicate with Signal servers. Prior to commit 82d70f6720e762898f34ae76b0894b0297d9b2f8, any contact may forge a sync message, impersonating another device of the local user. The origin of sync messages is not checked. Patched libsignal-service can be found after commit 82d70f6720e762898f34ae76b0894b0297d9b2f8. The `Metadata` struct contains an additional `was_encrypted` field, which breaks the API, but should be easily resolvable. No known workarounds are available.","aliases":["GHSA-r58q-66g9-h6g8"],"modified":"2026-04-02T12:47:44.279617Z","published":"2025-02-13T15:20:28.251Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/24xxx/CVE-2025-24903.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-345"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/24xxx/CVE-2025-24903.json"},{"type":"ADVISORY","url":"https://github.com/whisperfish/libsignal-service-rs/security/advisories/GHSA-r58q-66g9-h6g8"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-24903"},{"type":"FIX","url":"https://github.com/whisperfish/libsignal-service-rs/commit/82d70f6720e762898f34ae76b0894b0297d9b2f8"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/whisperfish/libsignal-service-rs","events":[{"introduced":"0"},{"fixed":"82d70f6720e762898f34ae76b0894b0297d9b2f8"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-24903.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N"}]}