critical
CVE-2026-77413
jsonata: JSONata: Arbitrary Code Execution via crafted JSONata expressions
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.
Severity by source
GHSA9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Red Hat9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Trivy's own label is CRITICAL. Rated critical by GHSA, Red Hat.
Description
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.
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| npm::GitHub Security Advisory npm | jsonata | 1.8.8, 2.2.0 |
| minimos | node-red-4, node-red-5, uptime-kuma-2.5 | 4.1.14-r0 and 2 more |
Show all 4 entries from 2 sources
| Source | Package | Fixed in |
|---|---|---|
| npm::GitHub Security Advisory npm | jsonata | 1.8.8, 2.2.0 |
| minimos | node-red-4 | 4.1.14-r0 |
| minimos | node-red-5 | 5.0.5-r0 |
| minimos | uptime-kuma-2.5 | 2.5.4-r0 |
References
- https://access.redhat.com/security/cve/CVE-2026-77413
- https://github.com/jsonata-js/jsonata
- https://github.com/jsonata-js/jsonata/commit/4b217d514376e30cba278941298d7ba97c4a6c6e
- https://github.com/jsonata-js/jsonata/commit/4c5f4adfb90a9b500889d50f90050ca68888b50d
- https://github.com/jsonata-js/jsonata/pull/794
- https://github.com/jsonata-js/jsonata/releases/tag/v1.8.8
- https://github.com/jsonata-js/jsonata/releases/tag/v2.2.0
- https://github.com/jsonata-js/jsonata/security/advisories/GHSA-8gq3-vp5j-2grp