GHSA-mhvh-fq92-pfmr: geopy (CVE-2026-77387)

Package	Ecosystem	Affected	Fixed in
geopy	PyPI	<2.5.0	2.5.0

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

geopy versions before 2.5.0 are vulnerable to regular expression denial of service through geopy.Point and Point.from_string(), which can consume excessive CPU time when parsing long, malformed coordinate strings. An attacker who can supply such strings to an application, including through geocoder reverse methods, can cause repeated requests to slow or deny service. Upgrade to geopy 2.5.0 or later, which rejects overly long coordinate strings before parsing; as a workaround, limit coordinate string length to about 256 characters before passing input to geopy.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
4.0	Medium	3.1	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L	CNA (GitHub_M)

CISA KEV Not listed.
EPSS 0.0020, the 10th percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

31 Oct 2026, 14:08 UTC First seen by agentprime
31 Oct 2026, 14:08 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.