What’s Vulnerable › Vulnerabilities

CVE-2026-77387: geopy: Regular Expression Denial of Service (ReDoS) in geopy.Point

• Severity: medium (CVSS 4.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-01 · updated 2026-10-02
• Weakness: CWE-1333

Description

geopy is a geocoding library for Python. Prior to 2.5.0, geopy.Point and Point.from_string() can spend excessive CPU time due to inefficient regular-expression behavior when an application passes a long malformed coordinate string without the 256-character input limit used by the fix. Geocoder reverse methods also reach the vulnerable parsing path when called with string inputs. Repeated attacker-controlled requests can cause a denial of service, while the numeric Point constructor is unaffected. This issue is fixed in version 2.5.0.

Affected products

• geopy: before 2.5.0

References

• https://github.com/geopy/geopy/commit/5d09fa843f90ec80788b61552539c9fd3ae6c528
• https://github.com/geopy/geopy/issues/608
• https://github.com/geopy/geopy/pull/610
• https://github.com/geopy/geopy/releases/tag/2.5.0
• https://github.com/geopy/geopy/security/advisories/GHSA-mhvh-fq92-pfmr
• https://github.com/geopy/geopy/issues/608

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