{"id":"CVE-2023-48056","aliases":["EUVD-2023-0218","GHSA-fxff-wxxv-c2jc","PYSEC-2023-245"],"status":"published","title":"PyPinkSign uses a non-random or static IV for Cipher Block Chaining (CBC) mode in AES encryption","description":"PyPinkSign v0.5.1 uses a non-random or static IV for Cipher Block Chaining (CBC) mode in AES encryption. This vulnerability can lead to the disclosure of information and communications.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00406,"percentile":0.35255,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-330"],"published":"2023-11-16T00:00:00Z","modified":"2026-10-28T02:30:49Z","affected":[{"source":"ghsa","ecosystem":"PyPI","package":"pypinksign","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.5.1"}]}]},{"source":"osv","ecosystem":"PyPI","package":"pypinksign","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.5.1"}]}],"versions":["0.1","0.1.1","0.2","0.2.1","0.2.2","0.2.3","0.3","0.4","0.4.1","0.4.2","0.4.3","0.4.4","0.4.5","0.5.0","0.5.1"]},{"source":"osv","ecosystem":"PyPI","package":"pypinksign","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1","0.1.1","0.2","0.2.1","0.2.2","0.2.3","0.3","0.4","0.4.1","0.4.2","0.4.3","0.4.4","0.4.5","0.5.0","0.5.1","0.5.2","0.5.3","0.5.4"]}],"products":[{"vendor":"bandoche","product":"pypinksign"}],"references":[{"url":"https://gxx777.github.io/PyPinkSign_v0.5.1_Cryptographic_API_Misuse_Vulnerability.md","tags":["x_transferred","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-48056","tags":["advisory"]},{"url":"https://github.com/bandoche/PyPinkSign/issues/29","tags":["web"]},{"url":"https://github.com/bandoche/PyPinkSign/commit/e1809ddf6a266e9007e10f0486b462fa7f89a43d","tags":["web"]},{"url":"https://github.com/bandoche/PyPinkSign/blob/main/pypinksign/pypinksign.py#L504","tags":["web"]},{"url":"https://github.com/bandoche/PyPinkSign/blob/main/pypinksign/pypinksign.py#L537","tags":["web"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/pypinksign/PYSEC-2023-245.yaml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-fxff-wxxv-c2jc","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/48xxx/CVE-2023-48056.json","tags":["advisory"]},{"url":"https://github.com/bandoche/PyPinkSign","tags":["package"]},{"url":"http://bandoche.com","tags":["web"]},{"url":"http://pypinksign.com","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2023-48056","description":"PyPinkSign v0.5.1 uses a non-random or static IV for Cipher Block Chaining (CBC) mode in AES encryption. This vulnerability can lead to the disclosure of information and communications.","status":"published","published":"2023-11-16T00:00:00Z","modified":"2026-07-09T00:29:03.175Z","updated_at":"2026-11-02T14:35:25.866071Z"}],"euvd":[{"id":"EUVD-2023-0218","description":"PyPinkSign v0.5.1 uses a non-random or static IV for Cipher Block Chaining (CBC) mode in AES encryption. This vulnerability can lead to the disclosure of information and communications.","status":"published","published":"2023-11-16T00:00:00Z","modified":"2026-07-09T00:29:03Z","updated_at":"2026-11-02T18:20:05.313723Z"}],"ghsa":[{"id":"GHSA-fxff-wxxv-c2jc","title":"PyPinkSign uses a non-random or static IV for Cipher Block Chaining (CBC) mode in AES encryption","description":"PyPinkSign v0.5.1 uses a non-random or static IV for Cipher Block Chaining (CBC) mode in AES encryption. This vulnerability can lead to the disclosure of information and communications.","status":"published","published":"2023-11-16T18:30:31Z","modified":"2024-10-14T17:04:19Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-330"],"updated_at":"2026-11-02T14:38:10.696798Z"}],"nvd":[{"id":"CVE-2023-48056","description":"PyPinkSign v0.5.1 uses a non-random or static IV for Cipher Block Chaining (CBC) mode in AES encryption. 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This vulnerability can lead to the disclosure of information and communications.","status":"published","published":"2023-11-16T18:15:00Z","modified":"2026-06-10T17:01:45.721564291Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:52:53.837392Z"},{"id":"CVE-2023-48056","description":"PyPinkSign v0.5.1 uses a non-random or static IV for Cipher Block Chaining (CBC) mode in AES encryption. This vulnerability can lead to the disclosure of information and communications.","status":"published","published":"2023-11-16T00:00:00Z","modified":"2026-10-28T02:30:49.467708121Z","updated_at":"2026-11-02T15:44:34.72355Z"}]}}