CVE-2026-88880

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    CVE-2026-88880

    Published: 10 Sept 2026Last Modified: 11 Sept 2026

    Summary: Renovate before 44.11.3 Credential Exfiltration via Link Header

    Details: Renovate before 44.11.3 fails to validate Link header destinations when following GitLab server pagination, allowing malicious servers to redirect credential-bearing requests. Attackers controlling a compromised GitLab server can specify a Link header pointing to attacker-controlled infrastructure to exfiltrate authentication credentials.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/88xxx/CVE-2026-88880.json, https://github.com/renovatebot/renovate/security/advisories/GHSA-9hmg-9h89-jhmx, https://nvd.nist.gov/vuln/detail/CVE-2026-88880, https://www.vulncheck.com/advisories/renovate-before-44.11.3-credential-exfiltration-via-link-header

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -a160e39c7ae935bee613db1fe398989e31672018

    Affected versions

    44.11.2
    44.11.1
    44.11.0

    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-2026-88880 | CVE-DB