CVE-2026-118765

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    CVE-2026-118765

    Published: 29 Oct 2026Last Modified: 1 Nov 2026

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

    Details: 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.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/118xxx/CVE-2026-118765.json, https://github.com/randombit/botan/security/advisories/GHSA-95xx-xh9v-v9c4, https://nvd.nist.gov/vuln/detail/CVE-2026-118765, https://github.com/randombit/botan/commit/a7389222ace990604b6985add91ee06f55a80c0e, https://github.com/randombit/botan/pull/5838

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 623aacddb21735f756bab0fdec044b822ee63260
    Fixed -2a81eef56c96c237e590c27f9a75e60317c9c700

    Affected versions

    3.12.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-118765 | CVE-DB