# CVE-2026-88880

## Summary

- **CVE ID:** CVE-2026-88880
- **Severity:** CRITICAL
- **CVSS Score:** 9.2 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N)
- **CWE:** CWE-601
- **Published:** Sep 10, 2026
- **Last Modified:** Sep 10, 2026

## Description

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.

## Affected Products

- renovatebot — renovate (0)
- renovatebot — renovate (44.11.3)
- renovatebot — renovate (15.4.0)
- renovatebot — renovate (10.4.0)

## References

- [CNA](https://github.com/renovatebot/renovate/security/advisories/GHSA-9hmg-9h89-jhmx)
- [CNA](https://www.vulncheck.com/advisories/renovate-before-44.11.3-credential-exfiltration-via-link-header)

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._