MEDIUMCVSS v3.1 4.8Vulnerability
CVE-2026-118767
Botan is a C++ cryptography library. From 1.11.22 until 3.13.0, Botan's Python binding converted Python strings containing U+0000 to const char* values without consistently rejecting the embedded NUL, causing bcrypt and check_bcrypt to process only the prefix before the NUL. Applications could validate a longer password but hash a shorter effective value, allowing application password-policy bypass; scrypt and argon2 are unaffected. This issue is fixed in version 3.13.0.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-10-29T19:54:00.882258+00:00
- Cvss severity
- MEDIUM
- Cvss score
- 4.8
- Retrieved at
- 2026-10-29T19:54:43+00:00
- Score
- 4.8
- Cvss version
- 3.1
- Last source
- NVD
- Cve id
- CVE-2026-118767
- Cvss vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
- First seen by Signal
- 2026-10-29T19:54:43+00:00
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
- Published at
- 2026-10-29T18:17:28.853
- Last modified
- 2026-10-29T18:17:28.853
Related Entities (1)
HAS_WEAKNESS (1)
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