Renovate before 44.11.2 Credential Exfiltration via Link Header
Summary
| CVE | CVE-2026-88882 |
|---|---|
| State | PUBLISHED |
| Assigner | VulnCheck |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-10 14:17:16 UTC |
| Updated | 2026-09-10 15:17:58 UTC |
| Description | Renovate is a dependency update automation tool. In versions before 44.11.2 (and Mend Renovate CE/EE images and charts before 15.4.0, and mend-renovate-enterprise-edition helm chart before 10.4.0), when listing new package versions from a NuGet registry Renovate follows pagination URLs supplied by the registry in the HTTP `Link` header without verifying that the target has the same origin as the configured registry. Registry credentials are attached to the request for the 'next' page, so a malicious or compromised NuGet registry can return a `Link` header pointing at an attacker-controlled server and cause Renovate to send the registry credentials to that server. Exploitation requires the remote registry to be malicious or compromised; such a registry would normally already have received the credentials on the initial request, so the issue primarily allows the credentials to be delivered to an additional, attacker-chosen host. The fix restricts pagination to the same origin; the previous behaviour can be re-enabled with the RENOVATE_X_NUGET_PAGINATION_ALLOW_CROSS_ORIGIN option. |
Risk And Classification
Primary CVSS: v4.0 9.2 CRITICAL from [email protected]
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Problem Types: CWE-601 | CWE-601 URL Redirection to Untrusted Site ('Open Redirect')
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 9.2 | CRITICAL | 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/E:X/C... |
| 4.0 | CNA | CVSS | 9.2 | CRITICAL | 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 |
| 3.1 | [email protected] | Secondary | 8.6 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N |
| 3.1 | CNA | CVSS | 8.6 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N |
CVSS v4.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowAttack Requirements
NonePrivileges Required
NoneUser Interaction
NoneConfidentiality
HighIntegrity
NoneAvailability
NoneSub Conf.
HighSub Integrity
NoneSub Availability
NoneCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
ChangedConfidentiality
HighIntegrity
NoneAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Renovatebot | Renovate | affected 44.11.2 semver | Not specified |
| CNA | Renovatebot | Renovate | unaffected 44.11.2 semver | Not specified |
| CNA | Renovatebot | Renovate | affected 44.11.2 semver | Not specified |
| CNA | Renovatebot | Renovate | unaffected 44.11.2 semver | Not specified |
| CNA | Renovatebot | Renovate | affected 44.11.2 semver | Not specified |
| CNA | Renovatebot | Renovate | unaffected 44.11.2 semver | Not specified |
| CNA | Renovatebot | Renovate | affected 44.11.2 semver | Not specified |
| CNA | Renovatebot | Renovate | unaffected 44.11.2 semver | Not specified |
| CNA | Renovatebot | Renovate | affected 15.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | unaffected 15.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | affected 15.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | unaffected 15.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | affected 15.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | unaffected 15.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | affected 15.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | unaffected 15.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | affected 15.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | unaffected 15.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | affected 15.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | unaffected 15.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | affected 15.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | unaffected 15.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | affected 15.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | unaffected 15.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | affected 15.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | unaffected 15.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | affected 15.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | unaffected 15.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | affected 15.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | unaffected 15.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | affected 10.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | unaffected 10.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | affected 10.4.0 semver | Not specified |
| CNA | Renovatebot | Renovate | unaffected 10.4.0 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.vulncheck.com/advisories/renovate-before-44.11.2-credential-exfiltration-vi... | [email protected] | www.vulncheck.com | |
| github.com/renovatebot/renovate/security/advisories/GHSA-rh7w-ccch-gh49 | [email protected] | github.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: jamietanna (en)
There are currently no legacy QID mappings associated with this CVE.