CVE-2026-12208

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreHIGH confidence

Score 5.3 from GitHub Security Advisory published 2026-06-15. a secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.3Exploit: NoneExposed: 0

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

A weakness has been identified in jsonata-js jsonata up to 2.2.0. The affected element is the function createFrame of the file src/jsonata.js of the component Function Binding Frame System. This manipulation causes improperly controlled modification of object prototype attributes. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
5.3
EG Score
5.3(high)
EPSS
23.3%
KEV
Not listed

Published

June 15, 2026

Last Modified

June 15, 2026

Advisory Details (1)

Auto-updated Jun 16, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

GitHub - OriginSecurityX/jsonata-hasownproperty-bypass · GitHub

https://github.com/OriginSecurityX/jsonata-hasownproperty-bypass

Vendor Advisories for CVE-2026-12208(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 22× in last 7d / 76× 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. 2026-07-07 00:32 UTCEG score recompute
  2. 2026-07-07 00:32 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-05 10:40 UTCEG score recompute
  6. 2026-07-05 10:40 UTCGHSA enrichment
  7. 2026-07-05 02:30 UTCEPSS rescore
  8. 2026-07-05 02:30 UTCEPSS rescore
  9. 2026-07-04 12:39 UTCEG score recompute
  10. 2026-07-04 12:39 UTCGHSA enrichment
  11. 2026-07-04 06:31 UTCEPSS rescore
  12. 2026-07-03 14:21 UTCEG score recompute
  13. 2026-07-03 14:21 UTCGHSA enrichment
  14. 2026-07-02 14:23 UTCEG score recompute
  15. 2026-07-02 14:23 UTCGHSA enrichment
  16. 2026-07-01 16:24 UTCEG score recompute
  17. 2026-07-01 16:24 UTCGHSA enrichment
  18. 2026-07-01 15:06 UTCEPSS rescore
  19. 2026-07-01 15:06 UTCEPSS rescore
  20. 2026-06-30 23:22 UTCEPSS rescore
  21. 2026-06-30 18:25 UTCEG score recompute
  22. 2026-06-30 18:25 UTCGHSA enrichment
  23. 2026-06-29 20:26 UTCEG score recompute
  24. 2026-06-29 20:26 UTCGHSA enrichment
  25. 2026-06-29 14:06 UTCEPSS rescore
Show 51 more
  1. 2026-06-28 22:27 UTCEG score recompute
  2. 2026-06-28 22:27 UTCGHSA enrichment
  3. 2026-06-28 14:07 UTCEPSS rescore
  4. 2026-06-28 04:56 UTCEPSS rescore
  5. 2026-06-28 04:56 UTCEPSS rescore
  6. 2026-06-28 00:28 UTCEG score recompute
  7. 2026-06-28 00:28 UTCGHSA enrichment
  8. 2026-06-27 03:08 UTCEPSS rescore
  9. 2026-06-27 02:18 UTCEG score recompute
  10. 2026-06-27 02:18 UTCGHSA enrichment
  11. 2026-06-26 04:15 UTCEG score recompute
  12. 2026-06-26 04:15 UTCGHSA enrichment
  13. 2026-06-25 13:49 UTCEPSS rescore
  14. 2026-06-25 06:15 UTCEG score recompute
  15. 2026-06-25 06:15 UTCGHSA enrichment
  16. 2026-06-24 14:05 UTCEPSS rescore
  17. 2026-06-24 08:15 UTCEG score recompute
  18. 2026-06-24 08:15 UTCGHSA enrichment
  19. 2026-06-23 21:32 UTCEPSS rescore
  20. 2026-06-23 10:08 UTCEG score recompute
  21. 2026-06-23 10:08 UTCGHSA enrichment
  22. 2026-06-22 14:25 UTCEPSS rescore
  23. 2026-06-22 14:25 UTCEPSS rescore
  24. 2026-06-22 12:09 UTCEG score recompute
  25. 2026-06-22 12:09 UTCGHSA enrichment
  26. 2026-06-21 14:56 UTCEPSS rescore
  27. 2026-06-21 14:56 UTCEPSS rescore
  28. 2026-06-21 14:07 UTCEG score recompute
  29. 2026-06-21 14:07 UTCGHSA enrichment
  30. 2026-06-21 01:59 UTCEPSS rescore
  31. 2026-06-21 01:59 UTCEPSS rescore
  32. 2026-06-20 15:36 UTCEG score recompute
  33. 2026-06-20 15:35 UTCGHSA enrichment
  34. 2026-06-19 19:25 UTCEPSS rescore
  35. 2026-06-19 17:34 UTCEG score recompute
  36. 2026-06-19 17:33 UTCGHSA enrichment
  37. 2026-06-18 19:15 UTCEG score recompute
  38. 2026-06-18 19:14 UTCGHSA enrichment
  39. 2026-06-18 17:52 UTCEPSS rescore
  40. 2026-06-17 20:53 UTCEG score recompute
  41. 2026-06-17 20:52 UTCGHSA enrichment
  42. 2026-06-17 17:53 UTCEPSS rescore
  43. 2026-06-16 22:53 UTCEG score recompute
  44. 2026-06-16 22:53 UTCGHSA enrichment
  45. 2026-06-16 17:52 UTCEPSS rescore
  46. 2026-06-16 00:53 UTCEG score recompute
  47. 2026-06-16 00:53 UTCGHSA enrichment
  48. 2026-06-15 17:48 UTCEPSS rescore
  49. 2026-06-15 03:24 UTCNVD updateCVSS v4 → 5.5
  50. 2026-06-15 02:53 UTCEG score recompute
  51. 2026-06-15 02:53 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-12208?
CVE-2026-12208 is a medium vulnerability published on June 15, 2026. A weakness has been identified in jsonata-js jsonata up to 2.2.0. The affected element is the function createFrame of the file src/jsonata.js of the component Function Binding Frame System. This manipulation causes improperly controlled modification of object prototype attributes. It is possible to…
When was CVE-2026-12208 disclosed?
CVE-2026-12208 was first published in the National Vulnerability Database on June 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-12208 actively exploited?
CVE-2026-12208 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 23.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-12208?
CVE-2026-12208 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-12208?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-12208, 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

Explore the affected products and dependency analysis for CVE-2026-12208

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