{"id":"CVE-2023-33982","aliases":["EUVD-2023-38106","GHSA-f7g9-f9cq-4whw"],"status":"published","title":"Bramble Handshake Protocol (BHP) in Briar before 1.5.3 is not forward secure: eavesdroppers can...","description":"Bramble Handshake Protocol (BHP) in Briar before 1.5.3 is not forward secure: eavesdroppers can decrypt network traffic between two accounts if they later compromise both accounts. NOTE: the eavesdropping is typically impractical because BHP runs over an encrypted session that uses the Tor hidden service protocol.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00457,"percentile":0.39897,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-326"],"published":"2023-05-24T00:00:00Z","modified":"2026-06-17T06:02:39Z","products":[{"vendor":"briarproject","product":"briar"}],"references":[{"url":"https://briarproject.org/news/2023-three-security-issues-found-and-fixed/","tags":["x_transferred","Vendor Advisory"]},{"url":"https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_YuanmingSong.pdf","tags":["x_transferred","Exploit","Technical Description","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-33982"},{"url":"https://briarproject.org/news/2023-three-security-issues-found-and-fixed"},{"url":"https://github.com/advisories/GHSA-f7g9-f9cq-4whw"}],"sources":{"cve":[{"id":"CVE-2023-33982","description":"Bramble Handshake Protocol (BHP) in Briar before 1.5.3 is not forward secure: eavesdroppers can decrypt network traffic between two accounts if they later compromise both accounts. NOTE: the eavesdropping is typically impractical because BHP runs over an encrypted session that uses the Tor hidden service protocol.","status":"published","published":"2023-05-24T00:00:00Z","modified":"2025-01-16T15:48:49.894Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-326"],"updated_at":"2026-11-02T14:35:34.170609Z"}],"euvd":[{"id":"EUVD-2023-38106","description":"Bramble Handshake Protocol (BHP) in Briar before 1.5.3 is not forward secure: eavesdroppers can decrypt network traffic between two accounts if they later compromise both accounts. NOTE: the eavesdropping is typically impractical because BHP runs over an encrypted session that uses the Tor hidden service protocol.","status":"published","published":"2023-05-24T00:00:00Z","modified":"2025-01-16T15:48:49Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T00:04:18.582094Z"}],"ghsa":[{"id":"GHSA-f7g9-f9cq-4whw","title":"Bramble Handshake Protocol (BHP) in Briar before 1.5.3 is not forward secure: eavesdroppers can...","description":"Bramble Handshake Protocol (BHP) in Briar before 1.5.3 is not forward secure: eavesdroppers can decrypt network traffic between two accounts if they later compromise both accounts. NOTE: the eavesdropping is typically impractical because BHP runs over an encrypted session that uses the Tor hidden service protocol.","status":"published","published":"2023-05-24T18:30:27Z","modified":"2024-04-04T04:19:50Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-326"],"updated_at":"2026-11-02T14:56:22.887174Z"}],"nvd":[{"id":"CVE-2023-33982","description":"Bramble Handshake Protocol (BHP) in Briar before 1.5.3 is not forward secure: eavesdroppers can decrypt network traffic between two accounts if they later compromise both accounts. NOTE: the eavesdropping is typically impractical because BHP runs over an encrypted session that uses the Tor hidden service protocol.","status":"published","published":"2023-05-24T18:15:10.927Z","modified":"2026-06-17T06:02:39.293Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-326"],"updated_at":"2026-11-02T14:08:03.200773Z"}]}}