renovate: Improper Protection of Alternate Path
CVE-2026-110865 is a high-severity improper protection of alternate path vulnerability in renovate from Renovatebot, with a CVSS 3.1 base score of 7.1 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. The record lists version 44.60.1 as the first without the flaw, so updating renovate to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.18% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update renovate to 44.60.1 or a later version.
- Update renovate-ce to 15.5.0 or a later version.
- Update renovate-ee-server to 15.5.0 or a later version.
- Read the advisory on github.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Renovatebot | renovate | before 44.60.1 | 44.60.1 |
| Mend | renovate-ce | before 15.5.0 | 15.5.0 |
| Mend | renovate-ee-server | before 15.5.0 | 15.5.0 |
| Mend | renovate-ee-worker | before 15.5.0 | 15.5.0 |
| Mend | mend-renovate-ce helm chart | before 15.5.0 | 15.5.0 |
| Mend | mend-renovate-enterprise-edition helm chart | before 10.5.0 | 10.5.0 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- HighSuccess depends on conditions outside the attacker's control.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- LowLimited modification of data is possible.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N. Scored by CNA (vulncheck.com).
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 7.1 | High | CNA (vulncheck.com) |
| CVSS 3.1 | 7.1 | High | CNA (vulncheck.com) |
Official description
Renovate before 44.60.1 contains an allowlist bypass vulnerability that allows repository users to evade the allowedHeaders restriction by placing hostRules headers inside shared presets. Attackers can supply internal or externally sourced presets with unvalidated hostRules[].headers to inject custom HTTP headers into requests Renovate sends to other hosts.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Protection of Alternate Path
The product does not sufficiently protect all possible paths that a user can take to access restricted functionality or resources.
How developers prevent this class of flaw
- Deploy different layers of protection to implement security in depth.
More Improper Protection of Alternate Path vulnerabilities (CWE-424)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Other references
Other vulnerabilities in renovate
- 8.5 High severity
- 8.5 High severity
- 7.8 High severity
- 7.0 High severity
- 8.6 High severity
- 7.8 High severity
Recent Improper Protection of Alternate Path vulnerabilities
- 7.7 High severity
- 8.1 High severity
- 8.2 High severity
- 8.2 High severity
- 9.8 Critical severity
- 8.2 High severity
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