OCTOBER 12, 2026
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Case File

CVE-2026-54716

HIGH · CVSS 7.5 EPSS 0.46% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-17 · Last synced 2026-10-12

CyberRota Analysis

AI-Generated

Valhalla, an open-source routing engine for OpenStreetMap data, is vulnerable to a denial-of-service attack due to unbounded memory growth triggered by a specific POST request containing a zero-area geometry. This flaw allows an unauthenticated user to crash a public-facing worker, potentially disrupting service availability. Organizations using Valhalla versions 3.7.0 and earlier should prioritize immediate mitigation efforts, as no fix is currently available.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-54716
Severity
HIGH
CVSS
7.5
EPSS
0.46%

Original NVD Description

Valhalla is an open source routing engine and accompanying libraries for use with OpenStreetMap data. In 3.7.0 and earlier, a POST request to /sources_to_targets containing an exclude_polygons ring formed by three collinear points can cause unbounded memory growth in the worker. The zero-area geometry, rather than the other request options, triggers processing in src/loki/polygon_search.cc until the process is terminated by the out-of-memory killer. A single unauthenticated request can therefore stop a public-facing worker. Other endpoints that accept exclude_polygons, including /route, were not verified as affected. No fixed version is available as of this review.