CVE-2026-77413Critical· 9.8▾ MidnightJSONata is a JSON query and transformation language. Prior to 1.8.8 and 2.2.0, the src/functions.js lookup function lacked an Object.prototype.hasOwnProperty check and allowed crafted expressions to access inherited prototype members. An…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 53.9 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Aug 22.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.4%
— → 9.8
0.4% → 0.7%
Last analysed / modified upstream
JSONata is a JSON query and transformation language. Prior to 1.8.8 and 2.2.0, the src/functions.js lookup function lacked an Object.prototype.hasOwnProperty check and allowed crafted expressions to access inherited prototype members. An attacker able to supply an expression could use inherited prototype setters and getters, constructor access, valueOf, and process.getBuiltinModule to reach the child_process module and execute arbitrary code with the privileges of the host process. This issue is fixed in versions 1.8.8 and 2.2.0.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
jsonata <= 1.8.7jsonata >= 2.0.0, < 2.2.0Patched in:
jsonata 1.8.8jsonata 2.2.0Source: https://github.com/advisories/GHSA-8gq3-vp5j-2grp
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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