high7.5
CVE-2026-52746
jsonata: Malicious inputs to "$toMillis" function can cause resource exhaustion
Impact
JSONata is a JSON query and transformation language. Prior to 2.2.0 and 1.8.9, malicious non-matching inputs to the $toMillis function can cause superlinear backtracking in the ISO-8601 validation regex, leading to denial of service in applications that evaluate user-provided JSONata expressions. This issue is fixed in version 2.2.0 and 1.8.9.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | jsonata | >= 2.0.0, < 2.2.0 | 2.2.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Jsonata | Jsonata | before 2.2.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-86vw-mfpg-wwv9
- https://github.com/jsonata-js/jsonata/security/advisories/GHSA-86vw-mfpg-wwv9
- https://github.com/jsonata-js/jsonata/pull/782
- https://github.com/jsonata-js/jsonata/pull/793
- https://github.com/jsonata-js/jsonata/commit/80ba95d170f74e3f20f4f36b8b77d8c85cea7686
- https://github.com/jsonata-js/jsonata/commit/d6ffc17cb16a8e53c222205bd274624e919cce0b
- https://github.com/jsonata-js/jsonata/releases/tag/v2.2.0
- https://nvd.nist.gov/vuln/detail/CVE-2026-52746
- https://github.com/jsonata-js/jsonata/releases/tag/v1.8.9