botan3: Botan is a C++ cryptography library
CVE-2026-118767 is fixed in botan3 on 1 platform by DEBIAN-CVE-2026-118767 (version 3.13.0+dfsg-2), released October 31, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| botan3 · Debian 14 | 3.13.0+dfsg-2 | DEBIAN-CVE-2026-118767 | Oct 31, 2026 |
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