CVE-2026-118765Published

Botan: AutoSeeded_RNG can become reinitialized from predictable data after clearing state

Exact source revision recorded 29 Oct 2026 19:28:49 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-118765

Published

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.

Source published: 29 Oct 2026 17:12:07 UTC
Source modified: 29 Oct 2026 17:12:07 UTC
Observed here: 29 Oct 2026 19:28:49 UTC
Source terms: CVE Program Terms of Use

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CVSS 4.0 · 7.3 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