CVE-2026-52746

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.7%, top 50% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
50%
KEV
Not listed

Published

July 2, 2026

Last Modified

August 3, 2026

Advisory Details (6)

Auto-updated Jul 17, 2026
Patch available. Sources: github, github_pr, github_commit, github_release.
github_release Patch Available

2.2.0 Milestone Release

Patch available: jsonata-js/jsonata v2.2.0

https://github.com/jsonata-js/jsonata/releases/tag/v2.2.0
github_commit Patch Available

commit d6ffc17cb16a (jsonata-js/jsonata)

Patch available: jsonata-js/jsonata v2.2.0 (contains commit d6ffc17cb16a)

https://github.com/jsonata-js/jsonata/commit/d6ffc17cb16a8e53c222205bd274624e919cce0b
github_commit Patch Available

commit 80ba95d170f7 (jsonata-js/jsonata)

Patch available: jsonata-js/jsonata v2.1.1 (contains commit 80ba95d170f7)

https://github.com/jsonata-js/jsonata/commit/80ba95d170f74e3f20f4f36b8b77d8c85cea7686
github_pr Patch Available

fix iso8601 regex pattern

Patch available: jsonata-js/jsonata v2.2.0 (PR #793 merged 2026-05-14)

https://github.com/jsonata-js/jsonata/pull/793
github_pr Patch Available

fix $toMillis() with more than 3 digit fractional seconds

Patch available: jsonata-js/jsonata v2.1.1 (PR #782 merged 2026-04-30)

https://github.com/jsonata-js/jsonata/pull/782
github Patch Available

Malicious inputs to "$toMillis" function can cause resource exhaustion · Advisory · jsonata-js/jsonata · GitHub

https://github.com/jsonata-js/jsonata/security/advisories/GHSA-86vw-mfpg-wwv9

Vendor Advisories for CVE-2026-52746(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
jsonata—1.8.9—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 55× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-25 13:49 UTCEPSS rescore
  2. 2026-08-24 22:40 UTCEG score recompute
  3. 2026-08-24 10:15 UTCEG score recompute
  4. 2026-08-23 07:48 UTCEG score recompute
  5. 2026-08-23 00:19 UTCEPSS rescore
  6. 2026-08-22 06:26 UTCEG score recompute
  7. 2026-08-21 23:49 UTCEPSS rescore
  8. 2026-08-21 04:50 UTCEG score recompute
  9. 2026-08-20 22:55 UTCEPSS rescore
  10. 2026-08-20 04:02 UTCEG score recompute
  11. 2026-08-19 17:04 UTCEPSS rescore
  12. 2026-08-19 00:16 UTCEG score recompute
  13. 2026-08-18 13:48 UTCEPSS rescore
  14. 2026-08-17 23:15 UTCEG score recompute
  15. 2026-08-17 13:47 UTCEPSS rescore
  16. 2026-08-16 22:26 UTCEG score recompute
  17. 2026-08-16 14:56 UTCEPSS rescore
  18. 2026-08-16 10:01 UTCEG score recompute
  19. 2026-08-16 02:14 UTCEPSS rescore
  20. 2026-08-15 09:13 UTCEG score recompute
  21. 2026-08-15 01:30 UTCEPSS rescore
  22. 2026-08-14 08:24 UTCEG score recompute
  23. 2026-08-13 22:00 UTCEPSS rescore
  24. 2026-08-12 18:42 UTCEG score recompute
  25. 2026-08-12 13:51 UTCEPSS rescore
Show 45 more
  1. 2026-08-11 17:53 UTCEG score recompute
  2. 2026-08-11 05:23 UTCEG score recompute
  3. 2026-08-11 00:00 UTCEPSS rescore
  4. 2026-08-09 14:52 UTCEG score recompute
  5. 2026-08-09 13:46 UTCEPSS rescore
  6. 2026-08-09 02:29 UTCEG score recompute
  7. 2026-08-08 16:37 UTCEPSS rescore
  8. 2026-08-08 01:40 UTCEG score recompute
  9. 2026-08-07 00:52 UTCEG score recompute
  10. 2026-08-06 13:47 UTCEPSS rescore
  11. 2026-08-06 00:04 UTCEG score recompute
  12. 2026-08-05 19:17 UTCEPSS rescore
  13. 2026-08-04 22:39 UTCEG score recompute
  14. 2026-08-04 15:10 UTCEPSS rescore
  15. 2026-08-04 10:39 UTCEPSS rescore
  16. 2026-08-03 21:20 UTCEG score recompute
  17. 2026-08-03 21:08 UTCEG score recompute
  18. 2026-08-03 17:30 UTCEG score recompute
  19. 2026-08-03 10:36 UTCEPSS rescore
  20. 2026-08-02 04:08 UTCEG score recompute
  21. 2026-08-02 02:27 UTCEPSS rescore
  22. 2026-08-01 15:43 UTCEG score recompute
  23. 2026-08-01 04:16 UTCEPSS rescore
  24. 2026-07-31 02:20 UTCEG score recompute
  25. 2026-07-30 16:28 UTCEPSS rescore
  26. 2026-07-30 10:08 UTCEG score recompute
  27. 2026-07-30 01:30 UTCEPSS rescore
  28. 2026-07-28 19:23 UTCEG score recompute
  29. 2026-07-28 15:37 UTCEPSS rescore
  30. 2026-07-27 18:30 UTCEG score recompute
  31. 2026-07-26 17:37 UTCEG score recompute
  32. 2026-07-26 14:54 UTCEPSS rescore
  33. 2026-07-26 05:10 UTCEG score recompute
  34. 2026-07-25 14:18 UTCEPSS rescore
  35. 2026-07-24 14:18 UTCEPSS rescore
  36. 2026-07-23 14:18 UTCEPSS rescore
  37. 2026-07-23 03:19 UTCEG score recompute
  38. 2026-07-22 14:08 UTCEPSS rescore
  39. 2026-07-21 15:25 UTCEPSS rescore
  40. 2026-07-20 17:08 UTCEPSS rescore
  41. 2026-07-19 14:31 UTCEPSS rescore
  42. 2026-07-19 14:31 UTCEPSS rescore
  43. 2026-07-19 03:50 UTCEG score recompute
  44. 2026-07-19 02:29 UTCEPSS rescore
  45. 2026-07-02 21:06 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-52746?
CVE-2026-52746 is a high vulnerability published on July 2, 2026. 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.…
When was CVE-2026-52746 disclosed?
CVE-2026-52746 was first published in the National Vulnerability Database on July 2, 2026, with the most recent update on August 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-52746 actively exploited?
CVE-2026-52746 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 50.0% of all scored CVEs.
What is the CVSS score of CVE-2026-52746?
CVE-2026-52746 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-52746?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-52746, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-52746

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