geopy: Regular Expression Denial of Service (ReDoS) in geopy.Point
Impact
geopy.Point and Point.from_string() may take excessive CPU time when parsing long, malformed coordinate strings due to inefficient regular-expression behavior. The numeric Point constructor is not affected.
Geocoders' reverse methods called with string inputs exercise the vulnerable path.
Applications are affected when they pass attacker-controlled strings to these APIs without an appropriate length limit. Repeated requests may cause denial of service.
Patches
Fixed in geopy 2.5.0 by rejecting overly long (over 256 characters) coordinate strings before parsing.
Workarounds
Limit coordinate strings to a reasonable maximum length, such as 256 characters, before passing them to geopy.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | geopy | < 2.5.0 | 2.5.0 |
References
- https://github.com/geopy/geopy/security/advisories/GHSA-mhvh-fq92-pfmr
- https://nvd.nist.gov/vuln/detail/CVE-2026-77387
- https://github.com/geopy/geopy/issues/608
- https://github.com/geopy/geopy/pull/610
- https://github.com/geopy/geopy/commit/5d09fa843f90ec80788b61552539c9fd3ae6c528
- https://github.com/geopy/geopy
- https://github.com/geopy/geopy/releases/tag/2.5.0
- https://pypi.org/project/geopy
- https://github.com/advisories/GHSA-mhvh-fq92-pfmr
- CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L- Weakness (CWE)
CWE-1333- Platform
- Python (PyPI)
- Package
geopy- Disclosed
- 02.10.2026
- Updated
- 15.10.2026 18:17
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-4218 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-mhvh-fq92-pfmr - CC BY 4.0
Vulnerability history: geopy
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.