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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 callback parameter. When a request specifies a JSONP callback, the value is reflected directly into the HTTP response body with Content-Type: application/javascript, without any validation, output encoding, or allowlist filtering. An attacker can craft a URL contai
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:11e50fe6289c3a61a228051e4309140d56ca23e8995b6b5e1abca783869c78bf
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"valhalla","vendor":"valhalla","versions":[{"status":"affected","version":"<= 3.6.3"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7ad8762eccdae6a07569b8ed5e74726154264934efb94b1f8167d511c724acaa · sha256:9c482322ca244e5e… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:7ad8762eccdae6a07569b8ed5e74726154264934efb94b1f8167d511c724acaa · sha256:9c482322ca244e5e… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7ad8762eccdae6a07569b8ed5e74726154264934efb94b1f8167d511c724acaa · sha256:9c482322ca244e5e… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/valhalla/valhalla/security/advisories/GHSA-85xx-39j8-r56x","tags":["x_refsource_CONFIRM"],"url":"https://github.com/valhalla/valhalla/security/advisories/GHSA-85xx-39j8-r56x"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7ad8762eccdae6a07569b8ed5e74726154264934efb94b1f8167d511c724acaa · sha256:9c482322ca244e5e… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/valhalla/valhalla/security/advisories/GHSA-85xx-39j8-r56x"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7ad8762eccdae6a07569b8ed5e74726154264934efb94b1f8167d511c724acaa · sha256:9c482322ca244e5e… · /containers/adp/0/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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