CVE-2026-40612

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.5 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 94% 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, nvd
Elevated
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.5Exploit: NoneExposed: 0

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

jq is a command-line JSON processor. In 1.8.1 and earlier, jv_contains recurses into nested arrays/objects with no depth limit. With a sufficiently nested input structure (built programmatically with reduce, since the JSON parser caps at depth 10000), the C stack is exhausted.

CVSS v3
5.5
EG Score
5.5(medium)
EPSS
5.7%
KEV
Not listed

Published

May 11, 2026

Last Modified

May 13, 2026

Advisory Details (1)

Auto-updated Jun 16, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Stack overflow via unbounded recursion in jv_contains · Advisory · jqlang/jq · GitHub

https://github.com/jqlang/jq/security/advisories/GHSA-r7m6-x9c7-h69j

Vendor Advisories for CVE-2026-40612(2)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 60× 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.

Showing the most recent 100 of 104 total refreshes for this CVE.

  1. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 02:23 UTCEPSS rescore
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-05 02:30 UTCEPSS rescore
  6. 2026-07-04 06:31 UTCEPSS rescore
  7. 2026-07-01 15:06 UTCEPSS rescore
  8. 2026-06-30 23:22 UTCEPSS rescore
  9. 2026-06-29 14:06 UTCEPSS rescore
  10. 2026-06-28 14:07 UTCEPSS rescore
  11. 2026-06-28 04:56 UTCEPSS rescore
  12. 2026-06-27 09:47 UTCEG score recompute
  13. 2026-06-27 09:47 UTCVendor advisory
  14. 2026-06-27 03:08 UTCEPSS rescore
  15. 2026-06-26 05:06 UTCEG score recompute
  16. 2026-06-26 05:06 UTCVendor advisory
  17. 2026-06-25 13:49 UTCEPSS rescore
  18. 2026-06-25 13:49 UTCEPSS rescore
  19. 2026-06-24 14:05 UTCEPSS rescore
  20. 2026-06-23 21:33 UTCEPSS rescore
  21. 2026-06-22 14:25 UTCEPSS rescore
  22. 2026-06-22 14:25 UTCEPSS rescore
  23. 2026-06-21 14:56 UTCEPSS rescore
  24. 2026-06-21 14:56 UTCEPSS rescore
  25. 2026-06-21 01:59 UTCEPSS rescore
Show 75 more
  1. 2026-06-19 19:25 UTCEPSS rescore
  2. 2026-06-18 17:52 UTCEPSS rescore
  3. 2026-06-18 17:52 UTCEPSS rescore
  4. 2026-06-17 17:53 UTCEPSS rescore
  5. 2026-06-16 17:52 UTCEPSS rescore
  6. 2026-06-16 07:23 UTCEG score recompute
  7. 2026-06-16 07:23 UTCVendor advisory
  8. 2026-06-15 17:49 UTCEPSS rescore
  9. 2026-06-15 02:14 UTCEG score recompute
  10. 2026-06-15 02:14 UTCVendor advisory
  11. 2026-06-14 01:56 UTCEG score recompute
  12. 2026-06-14 01:56 UTCVendor advisory
  13. 2026-06-13 23:00 UTCEPSS rescore
  14. 2026-06-12 23:12 UTCEPSS rescore
  15. 2026-06-12 23:12 UTCEPSS rescore
  16. 2026-06-12 10:24 UTCEG score recompute
  17. 2026-06-12 10:24 UTCVendor advisory
  18. 2026-06-11 14:00 UTCEPSS rescore
  19. 2026-06-11 10:06 UTCEG score recompute
  20. 2026-06-11 10:06 UTCVendor advisory
  21. 2026-06-10 22:18 UTCEPSS rescore
  22. 2026-06-10 13:22 UTCEPSS rescore
  23. 2026-06-10 13:22 UTCEPSS rescore
  24. 2026-06-10 09:49 UTCEG score recompute
  25. 2026-06-10 09:49 UTCVendor advisory
  26. 2026-06-09 09:31 UTCEG score recompute
  27. 2026-06-09 09:31 UTCVendor advisory
  28. 2026-06-08 14:17 UTCEPSS rescore
  29. 2026-06-08 14:17 UTCEPSS rescore
  30. 2026-06-08 09:12 UTCEG score recompute
  31. 2026-06-08 09:12 UTCVendor advisory
  32. 2026-06-07 15:25 UTCEPSS rescore
  33. 2026-06-07 15:25 UTCEPSS rescore
  34. 2026-06-07 08:54 UTCEG score recompute
  35. 2026-06-07 08:54 UTCVendor advisory
  36. 2026-06-06 13:47 UTCEPSS rescore
  37. 2026-06-06 13:47 UTCEPSS rescore
  38. 2026-06-06 08:36 UTCEG score recompute
  39. 2026-06-06 08:36 UTCVendor advisory
  40. 2026-06-05 22:47 UTCEPSS rescore
  41. 2026-06-05 08:17 UTCEG score recompute
  42. 2026-06-05 08:17 UTCVendor advisory
  43. 2026-06-05 06:10 UTCEPSS rescore
  44. 2026-06-05 06:10 UTCEPSS rescore
  45. 2026-06-04 13:12 UTCEPSS rescore
  46. 2026-06-04 13:12 UTCEPSS rescore
  47. 2026-06-04 07:57 UTCEG score recompute
  48. 2026-06-04 07:57 UTCVendor advisory
  49. 2026-06-03 07:39 UTCEG score recompute
  50. 2026-06-03 07:39 UTCVendor advisory
  51. 2026-06-02 20:13 UTCEPSS rescore
  52. 2026-06-02 07:20 UTCEG score recompute
  53. 2026-06-02 07:20 UTCVendor advisory
  54. 2026-06-01 13:52 UTCEPSS rescore
  55. 2026-06-01 13:52 UTCEPSS rescore
  56. 2026-06-01 13:51 UTCEPSS rescore
  57. 2026-06-01 07:02 UTCEG score recompute
  58. 2026-05-31 22:30 UTCEPSS rescore
  59. 2026-05-31 22:30 UTCEPSS rescore
  60. 2026-05-31 00:16 UTCEPSS rescore
  61. 2026-05-31 00:16 UTCEPSS rescore
  62. 2026-05-31 00:16 UTCEPSS rescore
  63. 2026-05-29 13:44 UTCEPSS rescore
  64. 2026-05-29 13:44 UTCEPSS rescore
  65. 2026-05-28 13:44 UTCEPSS rescore
  66. 2026-05-28 13:44 UTCEPSS rescore
  67. 2026-05-28 13:44 UTCEPSS rescore
  68. 2026-05-27 13:40 UTCEPSS rescore
  69. 2026-05-27 13:40 UTCEPSS rescore
  70. 2026-05-27 13:40 UTCEPSS rescore
  71. 2026-05-26 13:44 UTCEPSS rescore
  72. 2026-05-26 07:18 UTCEPSS rescore
  73. 2026-05-26 07:18 UTCEPSS rescore
  74. 2026-05-23 00:07 UTCEG score recompute
  75. 2026-05-20 22:38 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-40612?
CVE-2026-40612 is a medium vulnerability published on May 11, 2026. jq is a command-line JSON processor. In 1.8.1 and earlier, jv_contains recurses into nested arrays/objects with no depth limit. With a sufficiently nested input structure (built programmatically with reduce, since the JSON parser caps at depth 10000), the C stack is exhausted.
When was CVE-2026-40612 disclosed?
CVE-2026-40612 was first published in the National Vulnerability Database on May 11, 2026, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-40612 actively exploited?
CVE-2026-40612 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-40612?
CVE-2026-40612 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-40612?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-40612, 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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