CVE-2026-10856
Is CVE-2026-10856 real, exploitable, or a false positive? Here's the community verdict.
signals
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Moderate signals. Triage by your actual exposure and reachability.
baseline read
auto · not a community verdict
Officially disputed
The CVE record itself is disputed or rejected upstream — a strong candidate for a false positive in scanners. Confirm with a verdict.
Based on NVD record status
Confirm or dispute →CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
A URL validation flaw in the MISP dashboard button widget allowed a crafted relative-looking URL to be accepted as a local path while being interpreted by browsers as an external URL. The validation rejected URLs containing an explicit scheme, host, or user component, but did not reject paths beginning with a slash followed by a backslash, such as /\example.com. Some browsers normalize backslashes in URLs as forward slashes, which can turn this into a scheme-relative external navigation target. In addition, the generated href concatenated the reconstructed URL with the original URL, increasing the possibility of unsafe or malformed link generation. An attacker able to configure or influence a dashboard button URL could craft a button that appears to point inside the application but redirects users to an attacker-controlled site when clicked. This could be used for phishing, credential theft, or social engineering. The patch fixes the issue by rejecting empty paths and paths starting with /\, and by emitting only the reconstructed validated URL in the anchor href.
References
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