CVE-2026-118765 (GCVE-0-2026-118765)

Vulnerability from cvelistv5 – Published: 2026-10-29 17:12 – Updated: 2026-10-29 20:19
VLAI
Title
Botan: AutoSeeded_RNG can become reinitialized from predictable data after clearing state
Summary
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.
Severity
7.3 (High)
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 20:19 UTC
CWE
  • CWE-335 - Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 8129 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
randombit botan Affected: >= 3.7.0, < 3.13.0
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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