CVE-2026-12208

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM 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
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: None knownExposed: 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(medium)
EG Risk
28(Track)
EG Risk 28/100SSVC: 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
Severity53% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
24%
KEV
Not listed

Published

June 15, 2026

Last Modified

July 24, 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 13× in last 7d / 59× 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. 2026-07-27 14:13 UTCEPSS rescore
  2. 2026-07-27 07:50 UTCEG score recompute
  3. 2026-07-27 07:50 UTCGHSA enrichment
  4. 2026-07-26 14:54 UTCEPSS rescore
  5. 2026-07-26 14:54 UTCEPSS rescore
  6. 2026-07-26 05:14 UTCEG score recompute
  7. 2026-07-26 05:13 UTCGHSA enrichment
  8. 2026-07-25 14:17 UTCEPSS rescore
  9. 2026-07-24 14:17 UTCEPSS rescore
  10. 2026-07-23 14:18 UTCEPSS rescore
  11. 2026-07-23 03:05 UTCEG score recompute
  12. 2026-07-22 14:08 UTCEPSS rescore
  13. 2026-07-21 15:24 UTCEPSS rescore
  14. 2026-07-20 17:08 UTCEPSS rescore
  15. 2026-07-19 14:30 UTCEPSS rescore
  16. 2026-07-19 02:28 UTCEPSS rescore
  17. 2026-07-18 10:04 UTCEPSS rescore
  18. 2026-07-17 06:37 UTCGHSA enrichment
  19. 2026-07-16 17:02 UTCEPSS rescore
  20. 2026-07-16 08:36 UTCGHSA enrichment
  21. 2026-07-15 16:57 UTCEPSS rescore
  22. 2026-07-15 10:01 UTCGHSA enrichment
  23. 2026-07-15 02:00 UTCEPSS rescore
  24. 2026-07-14 11:59 UTCGHSA enrichment
  25. 2026-07-13 22:30 UTCEPSS rescore
Show 66 more
  1. 2026-07-13 13:59 UTCGHSA enrichment
  2. 2026-07-13 06:12 UTCEPSS rescore
  3. 2026-07-12 15:59 UTCGHSA enrichment
  4. 2026-07-12 05:46 UTCEPSS rescore
  5. 2026-07-11 17:19 UTCGHSA enrichment
  6. 2026-07-11 08:27 UTCEPSS rescore
  7. 2026-07-10 19:20 UTCGHSA enrichment
  8. 2026-07-09 21:21 UTCGHSA enrichment
  9. 2026-07-09 19:10 UTCEPSS rescore
  10. 2026-07-08 20:31 UTCGHSA enrichment
  11. 2026-07-08 15:15 UTCEPSS rescore
  12. 2026-07-08 15:15 UTCEPSS rescore
  13. 2026-07-07 22:32 UTCGHSA enrichment
  14. 2026-07-07 00:32 UTCGHSA enrichment
  15. 2026-07-06 16:27 UTCEPSS rescore
  16. 2026-07-06 02:23 UTCEPSS rescore
  17. 2026-07-05 10:40 UTCGHSA enrichment
  18. 2026-07-05 02:30 UTCEPSS rescore
  19. 2026-07-05 02:30 UTCEPSS rescore
  20. 2026-07-04 12:39 UTCGHSA enrichment
  21. 2026-07-04 06:31 UTCEPSS rescore
  22. 2026-07-03 14:21 UTCGHSA enrichment
  23. 2026-07-02 14:23 UTCGHSA enrichment
  24. 2026-07-01 16:24 UTCGHSA enrichment
  25. 2026-07-01 15:06 UTCEPSS rescore
  26. 2026-07-01 15:06 UTCEPSS rescore
  27. 2026-06-30 23:22 UTCEPSS rescore
  28. 2026-06-30 18:25 UTCGHSA enrichment
  29. 2026-06-29 20:26 UTCGHSA enrichment
  30. 2026-06-29 14:06 UTCEPSS rescore
  31. 2026-06-28 22:27 UTCGHSA enrichment
  32. 2026-06-28 14:07 UTCEPSS rescore
  33. 2026-06-28 04:56 UTCEPSS rescore
  34. 2026-06-28 04:56 UTCEPSS rescore
  35. 2026-06-28 00:28 UTCGHSA enrichment
  36. 2026-06-27 03:08 UTCEPSS rescore
  37. 2026-06-27 02:18 UTCGHSA enrichment
  38. 2026-06-26 04:15 UTCGHSA enrichment
  39. 2026-06-25 13:49 UTCEPSS rescore
  40. 2026-06-25 06:15 UTCGHSA enrichment
  41. 2026-06-24 14:05 UTCEPSS rescore
  42. 2026-06-24 08:15 UTCGHSA enrichment
  43. 2026-06-23 21:32 UTCEPSS rescore
  44. 2026-06-23 10:08 UTCGHSA enrichment
  45. 2026-06-22 14:25 UTCEPSS rescore
  46. 2026-06-22 14:25 UTCEPSS rescore
  47. 2026-06-22 12:09 UTCGHSA enrichment
  48. 2026-06-21 14:56 UTCEPSS rescore
  49. 2026-06-21 14:56 UTCEPSS rescore
  50. 2026-06-21 14:07 UTCGHSA enrichment
  51. 2026-06-21 01:59 UTCEPSS rescore
  52. 2026-06-21 01:59 UTCEPSS rescore
  53. 2026-06-20 15:35 UTCGHSA enrichment
  54. 2026-06-19 19:25 UTCEPSS rescore
  55. 2026-06-19 17:33 UTCGHSA enrichment
  56. 2026-06-18 19:14 UTCGHSA enrichment
  57. 2026-06-18 17:52 UTCEPSS rescore
  58. 2026-06-17 20:52 UTCGHSA enrichment
  59. 2026-06-17 17:53 UTCEPSS rescore
  60. 2026-06-16 22:53 UTCGHSA enrichment
  61. 2026-06-16 17:52 UTCEPSS rescore
  62. 2026-06-16 00:53 UTCGHSA enrichment
  63. 2026-06-15 17:48 UTCEPSS rescore
  64. 2026-06-15 03:24 UTCNVD updateCVSS v4 → 5.5
  65. 2026-06-15 02:53 UTCEG score recompute
  66. 2026-06-15 02:53 UTCMITRE cvelistV5first tracked

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, with the most recent update on July 24, 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 0% probability of exploitation in the next 30 days, which ranks it in the top 76.3% of all scored CVEs.
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

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