{"id":"CVE-2021-37588","aliases":["EUVD-2021-24146","GHSA-3w5v-ccpq-xw6c"],"status":"published","title":"In Charm 0.43, any two users can collude to achieve the ability to decrypt YCT14 data.","description":"In Charm 0.43, any two users can collude to achieve the ability to decrypt YCT14 data.","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":"2026-11-10","score":0.00908,"percentile":0.60237,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-326","CWE-327"],"published":"2021-07-27T22:06:37Z","modified":"2026-10-20T10:53:51Z","products":[{"vendor":"jhu","product":"charm"}],"references":[{"url":"https://github.com/JHUISI/charm/issues/276","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Third Party Advisory","report"]},{"url":"https://eprint.iacr.org/2020/460","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://www2.hci.uni-hannover.de/papers/Tan2019.pdf","tags":["x_refsource_MISC","x_transferred","Technical Description","Third Party Advisory","advisory"]},{"url":"https://github.com/JHUISI/charm/blob/dev/charm/schemes/abenc/abenc_yct14.py","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-37588"},{"url":"https://github.com/advisories/GHSA-3w5v-ccpq-xw6c"}],"sources":{"cve":[{"id":"CVE-2021-37588","description":"In Charm 0.43, any two users can collude to achieve the ability to decrypt YCT14 data.","status":"published","published":"2021-07-27T22:06:37Z","modified":"2024-08-04T01:23:01.289Z","updated_at":"2026-11-02T14:32:58.028461Z"}],"euvd":[{"id":"EUVD-2021-24146","description":"In Charm 0.43, any two users can collude to achieve the ability to decrypt YCT14 data.","status":"published","published":"2021-07-27T22:06:37Z","modified":"2024-08-04T01:23:01Z","updated_at":"2026-11-03T03:24:26.681577Z"}],"ghsa":[{"id":"GHSA-3w5v-ccpq-xw6c","title":"In Charm 0.43, any two users can collude to achieve the ability to decrypt YCT14 data.","description":"In Charm 0.43, any two users can collude to achieve the ability to decrypt YCT14 data.","status":"published","published":"2022-05-24T19:09:21Z","modified":"2023-08-08T15:31:19Z","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":"2026-11-02T14:54:44.111289Z"}],"nvd":[{"id":"CVE-2021-37588","description":"In Charm 0.43, any two users can collude to achieve the ability to decrypt YCT14 data.","status":"published","published":"2021-07-30T14:15:18.577Z","modified":"2026-06-17T04:00:47.58Z","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":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-327"],"updated_at":"2026-11-02T14:06:56.185362Z"}],"osv":[{"id":"CVE-2021-37588","description":"In Charm 0.43, any two users can collude to achieve the ability to decrypt YCT14 data.","status":"published","published":"2021-07-30T14:15:18.577Z","modified":"2026-10-20T10:53:51.641381641Z","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":"2026-11-02T15:44:20.434873Z"}]}}