Navigate endpoint is vulnerable to regex injection that may lead to Denial of Service.
Priority LOW 32CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-400.
Summary
GraphHopper is an open-source Java routing engine. In GrassHopper from version 2.0 and before version 2.4, there is a regular expression injection vulnerability that may lead to Denial of Service. This has been patched in 2.4 and 3.0 See this pull request for the fix: https://github.com/graphhopper/graphhopper/pull/2304
Why it matters now
EPSS 0.01404 72nd percentileScored 2026-11-07
Fix Fixed graphhopper (graphhopper): 2.4com.graphhopper:graphhopper-nav (Maven): 2.4
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| graphhopper | graphhopper | 2.0 to before 2.4 | 2.4 | Patch available | CNA |
| — | com.graphhopper:graphhopper-nav (Maven) | before 2.4 | 2.4 | Patch available | GHSA-hf44-3mx6-vhhw |
- graphhopper Vendorgraphhopper Affected 2.0 to before 2.4 Fixed in 2.4 Patch available CNA
- com.graphhopper:graphhopper-nav (Maven) Vendor— Affected before 2.4 Fixed in 2.4 Patch available GHSA-hf44-3mx6-vhhw
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:graphhopper:graphhopper:*:*:*:*:*:*:*:* | 2.0 to before 2.4 | Vulnerable | graphhopper |
- cpe:2.3:a:graphhopper:graphhopper:*:*:*:*:*:*:*:* Versions 2.0 to before 2.4 Vulnerable ·graphhopper
Remediation
- Fix · CNA graphhopper (graphhopper) Fixed in 2.4
- Fix · GHSA-hf44-3mx6-vhhw com.graphhopper:graphhopper-nav (Maven) Fixed in 2.4 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-29506
- 2026-10-03 Alias added: GHSA-hf44-3mx6-vhhw
References
More Graphhopper vulnerabilities
- TI-2021-06101 Prototype pollution in com.graphhopper:graphhopper-web-bundle CVSS 3.1MEDIUM 5.4
Sources
- CVE-2021-29506 · CVE Program
- CVE-2021-29506 · NVD
- FIRST EPSS
- GHSA-hf44-3mx6-vhhw · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences