CVE-2024-27307

Name: CVE-2024-27307
Creator: NVD / NIST
Published: 2024-03-06T20:15:47.537+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.42%

Last modified Jun 17, 2026

CVE-2024-27307 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. JSONata is a JSON query and transformation language. Starting in version 1.4.0 and prior to version 1.8.7 and 2.0.4, a malicious expression can use the transform operator to override properties on the `Object` constructor and prototype. EPSS estimates a 1.42% chance of exploitation in the next 30 days.

Description

JSONata is a JSON query and transformation language. Starting in version 1.4.0 and prior to version 1.8.7 and 2.0.4, a malicious expression can use the transform operator to override properties on the `Object` constructor and prototype. This may lead to denial of service, remote code execution or other unexpected behavior in applications that evaluate user-provided JSONata expressions. This issue has been fixed in JSONata versions 1.8.7 and 2.0.4. Applications that evaluate user-provided expressions should update ASAP to prevent exploitation. As a workaround, one may apply the patch manually.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.42%

69.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-1321

Affected Software

Vendor	Product	Versions
Jsonata	Jsonata	>= 1.4.0, < 1.8.7
Jsonata	Jsonata	>= 2.0.0, < 2.0.4

References

https://github.com/jsonata-js/jsonata/commit/1d579dbe99c19fbe509f5ba2c6db7959b0d456d1Patch
https://github.com/jsonata-js/jsonata/commit/335d38f6278e96c908b24183f1c9c90afc8ae00cPatch
https://github.com/jsonata-js/jsonata/commit/c907b5e517bb718015fcbd993d742ba6202f2be2Patch
https://github.com/jsonata-js/jsonata/releases/tag/v2.0.4Product, Release Notes
https://github.com/jsonata-js/jsonata/security/advisories/GHSA-fqg8-vfv7-8fj8Technical Description, Vendor Advisory
https://github.com/jsonata-js/jsonata/commit/1d579dbe99c19fbe509f5ba2c6db7959b0d456d1Patch
https://github.com/jsonata-js/jsonata/commit/335d38f6278e96c908b24183f1c9c90afc8ae00cPatch
https://github.com/jsonata-js/jsonata/commit/c907b5e517bb718015fcbd993d742ba6202f2be2Patch
https://github.com/jsonata-js/jsonata/releases/tag/v2.0.4Product, Release Notes
https://github.com/jsonata-js/jsonata/security/advisories/GHSA-fqg8-vfv7-8fj8Technical Description, Vendor Advisory

Timeline

Published: Mar 6, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-27307?

How severe is CVE-2024-27307?

CVE-2024-27307 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.42% probability of exploitation in the next 30 days.

How do I fix CVE-2024-27307?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-27307?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST