CVE-2026-8656
Medium
Description
Versions of the package jsondiffpatch before 0.7.6 are vulnerable to Cross-site Scripting (XSS) via the annotated formatter due to improper sanitization of JSON values and property names. If an application compares untrusted JSON/object data and renders annotated formatter output in the DOM, attacker-controlled HTML can be interpreted by the browser, resulting in XSS.
SeverityMedium
CVSS6.1
Exploit probability—
ProductJsondiffpatch
PublishedMay 16, 2026
First seenMay 16, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- jsondiffpatch0.7.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| jsondiffpatch | v < 0.7.6 | 0.7.6 |
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