CVE-2021-29506 json
Navigate endpoint is vulnerable to regex injection that may lead to Denial of Service.
published 2021-05-13 5 y ago modified 2026-07-08 4 mo ago also GHSA-hf44-3mx6-vhhw , EUVD-2021-1100
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 72%
- public exploits
- 0
- none known
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
Patch / fix
- maven com.graphhopper:graphhopper-nav 2.4
- graphhopper graphhopper 2.4
- github.com/graphhopper/graphhopper@eb189be commit
- github.com/graphhopper/graphhopper#2304 pull request
Exploit prediction
1.40% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:N/A:P |
| GitHub | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | com.graphhopper:graphhopper-nav | <2.4 |
2.4 |
Affected products
- graphhopper graphhopper
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
github.com
/graphhopper/graphhopper/pull/2304
web, patch, third-party-advisory
-
github.com
/graphhopper/graphhopper/commit/eb189be1fa7443ebf4ae881e737a18f818c95f41
web, patch, third-party-advisory
-
github.com
/graphhopper/graphhopper/security/advisories/GHSA-hf44-3mx6-vhhw
web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-29506
advisory
Sources
- CVE List CVE-2021-29506
- GitHub Advisory GHSA-hf44-3mx6-vhhw
- NVD CVE-2021-29506
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