CVE-2026-122234

Description

jsondiffpatch before 0.7.7 contains a cross-site scripting vulnerability that allows attackers to inject markup by supplying an unescaped array-move destination index in a delta. Attackers who control a delta passed to formatters.html.format() or formatters.annotated.format() can embed script that executes in the application's origin when output is rendered.

References

• https://github.com/benjamine/jsondiffpatch/commit/c6b2d97b34bc2356c816d8dd0f8b1c8af16bb6af
• https://github.com/benjamine/jsondiffpatch/security/advisories/GHSA-jhmf-rq89-q58p
• https://www.vulncheck.com/advisories/jsondiffpatch-before-0.7.7-xss-via-array-move-destination-in-html-formatters