CVE-2026-118765
Botan is a C++ cryptography library
- Risk score
- 44/100
- CVSS
- 7.3 v4.0
- Published
- 29 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- Botan is a C++ cryptography library. From 3.7.0 until 3.13.0, an application that calls AutoSeeded_RNG::clear() and then calls randomize with an empty output buffer while the generator is unseeded can cause AutoSeeded_RNG to mark itself seeded without consulting the configured entropy source. On builds without BOTAN_H…
- Affected
- See advisory
- Fix
- Upgrade the product to 3.13.0 or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 7.3 high
References
Original description
Botan is a C++ cryptography library. From 3.7.0 until 3.13.0, an application that calls AutoSeeded_RNG::clear() and then calls randomize with an empty output buffer while the generator is unseeded can cause AutoSeeded_RNG to mark itself seeded without consulting the configured entropy source. On builds without BOTAN_HAS_SYSTEM_RNG, the fallback uses only a clock value and process ID, so a later non-empty request can produce output from predictable state. This issue is fixed in version 3.13.0.
Last activity 29 Oct 2026. Patch Forecast updates every hour.