CVE-2026-116133

    Dashboard / Vulnerabilities / CVE-2026-116133

    CVE-2026-116133

    Published: 28 Oct 2026Last Modified: 7 Nov 2026

    Summary: HTTP::Body versions before 1.23_01 for Perl allow CPU exhaustion via quadratic rescanning of a multipart body with a missing or malformed boundary

    Details: HTTP::Body versions before 1.23_01 for Perl allow CPU exhaustion via quadratic rescanning of a multipart body with a missing or malformed boundary. Before the first part, and between parts, the multipart parser searches the whole buffered body for the next boundary. On a miss it keeps everything and searches again from the start when the next chunk arrives. A body with no boundary, or with a delimiter followed by neither CRLF nor "--", is therefore rescanned on every chunk, taking time quadratic in its size. A remote attacker can exhaust worker CPU with a few such requests.

    References: https://cpan.org/modules, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/116xxx/CVE-2026-116133.json, https://metacpan.org/release/GETTY/HTTP-Body-1.24/changes, https://nvd.nist.gov/vuln/detail/CVE-2026-116133, https://github.com/libwww-perl/HTTP-Body/commit/bf77eb959bbe1641b77f69eefe98d58ce4c4ec79.patch, https://github.com/libwww-perl/HTTP-Body

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -bf77eb959bbe1641b77f69eefe98d58ce4c4ec79

    Affected versions

    v1.23

    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-2026-116133 | CVE-DB