{"id":"CVE-2021-29506","aliases":["GHSA-hf44-3mx6-vhhw"],"url":"https://o3.security/vulnerability/CVE-2021-29506","summary":"Navigate endpoint is vulnerable to regex injection that may lead to Denial of Service.","details":"### Impact\nThe regex injection that may lead to Denial of Service.\n\n### Patches\nWill be patched in 2.4 and 3.0\n\n### Workarounds\nVersions lower than 2.x are only affected if the navigation module is added\n\n### References\nSee this pull request for the fix: https://github.com/graphhopper/graphhopper/pull/2304\n\nIf you have any questions or comments about this advisory please [send us an Email](https://www.graphhopper.com/contact-form/) or create a topic [here](https://discuss.graphhopper.com/).","published":"2021-05-13T19:15:07.983Z","modified":"2026-07-09T10:01:12.986500Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Maven","name":"com.graphhopper:graphhopper-nav","fixedVersion":"2.4"}],"fix":{"url":"https://github.com/graphhopper/graphhopper/commit/eb189be1fa7443ebf4ae881e737a18f818c95f41","label":"graphhopper/graphhopper@eb189be"},"references":[{"type":"ADVISORY","url":"https://github.com/graphhopper/graphhopper/security/advisories/GHSA-hf44-3mx6-vhhw"},{"type":"FIX","url":"https://github.com/graphhopper/graphhopper/commit/eb189be1fa7443ebf4ae881e737a18f818c95f41"},{"type":"FIX","url":"https://github.com/graphhopper/graphhopper/pull/2304"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-29506"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T10:01:12.986500Z"}}