CVE-2026-89086

    Dashboard / Vulnerabilities / CVE-2026-89086

    CVE-2026-89086

    Published: 10 Sept 2026Last Modified: 11 Sept 2026
    Aliases:
    OSEC-2026-19

    Summary:

    Details: In the jose package before 0.11.0 for OCaml, library calls to validate an RSA signature only confirm that PKCS #1 decoding succeeds, and proceed to declare the signature valid without the required steps that involve the public key.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89086.json, https://github.com/ulrikstrid/ocaml-jose/commit/cf17d991ec6a0d1997956b6c7799890f9c28879e, https://nvd.nist.gov/vuln/detail/CVE-2026-89086, https://osv.dev/vulnerability/OSEC-2026-19

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -a4a060bf4888d858566b798397815440e0c426c9

    Affected versions

    v0.10.0

    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-2026-89086 | CVE-DB