CVE-2026-87818

    Dashboard / Vulnerabilities / CVE-2026-87818

    CVE-2026-87818

    Published: 9 Sept 2026Last Modified: 11 Sept 2026

    Summary: GitPython 3.1.59 Local File Content Oracle via --no-index

    Details: GitPython 3.1.59 fails to restrict the --no-index option in the high-level diff API, allowing attackers to read arbitrary filesystem paths as repository operands. Attackers can combine --no-index with -I/--ignore-matching-lines to create a content-dependent Boolean oracle, repeatedly querying local files to recover single-line secrets through distinguishable success or error responses.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/87xxx/CVE-2026-87818.json, https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-whh4-5q6c-9v3x, https://nvd.nist.gov/vuln/detail/CVE-2026-87818, https://www.vulncheck.com/advisories/gitpython-3.1.59-local-file-content-oracle-via-no-index

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 66340d77aab9a7468f4aed3681d4ef1e3c0ec931
    Fixed -56636c3614aff1555fe716d3804ca59e653934ea

    Affected versions

    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-2026-87818 | CVE-DB