What is CVE-2026-49294?

CVE-2026-49294 is a medium-severity vulnerability in Valhalla, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-06-15.

How severe is CVE-2026-49294?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Valhalla

CVE-2026-49294

Valhalla is an open source routing engine and accompanying libraries for use with OpenStreetMap data. Versions 3.6.3 and prior are vulnerable to reflected cross-site scripting (XSS) due to improper neutralization of input in the JSONP call…

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Valhalla — versions <= 3.6.3

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-49294?: CVE-2026-49294 is a medium-severity vulnerability in Valhalla, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-06-15.
How severe is CVE-2026-49294?: Medium severity. CVSS v3 base score is 6.1 out of 10.