CVE-2026-83530

    Dashboard / Vulnerabilities / CVE-2026-83530

    CVE-2026-83530

    Published: 9 Sept 2026Last Modified: 11 Sept 2026

    Summary: Uncontrolled Memory Allocation in cel-go

    Details: A user could provide an expression whose string length is longer than the ParserExpressionSizeLimit() configured on the CEL environment, and a memory allocation would occur proportional to the size of the input before the limit would be checked / enforced.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/83xxx/CVE-2026-83530.json, https://nvd.nist.gov/vuln/detail/CVE-2026-83530, https://github.com/cel-expr/cel-go/pull/1302

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -fa16799e423d709cfb1a20c10c1db7dc6e640e55

    Affected versions

    v0.28.1
    v0.28.0
    v0.28.0-alpha

    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-2026-83530 | CVE-DB