Vulnerability Intelligence Report
Renovate before 44.11.3 Credential Exfiltration via Link Header
CVE-2026-88880
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.
No Active Exploit Signals
CVSS Base Score
9.2
CRITICAL
EPSS Probability:0.50%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-601 ↗URL Redirection to Untrusted Site ('Open Redirect')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| renovatebot | renovate | 0 < 44.11.3 (affected), 44.11.3 (unaffected) |
| mend | renovate-ce | 0 < 15.4.0 (affected), 15.4.0 (unaffected) |
| mend | renovate-ee-server | 0 < 15.4.0 (affected), 15.4.0 (unaffected) |
| mend | renovate-ee-worker | 0 < 15.4.0 (affected), 15.4.0 (unaffected) |
| mend | mend-renovate-ce | 0 < 15.4.0 (affected), 15.4.0 (unaffected) |
| mend | mend-renovate-enterprise-edition | 0 < 10.4.0 (affected), 10.4.0 (unaffected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.504%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | VulnCheck · Bug Bounty Provider · USA |
| Reserved | 2026-09-10T11:25:34 |
| Published | 2026-09-10T13:05:31 |
| Patch Date | 2026-08-27 |
| Last Updated | 2026-09-29T22:10:37 |
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