CVE-2026-33947

MEDIUMNVD 6.26.2
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This medium-severity CVE scores 6.2 under NVD CVSS v3. EPSS exploit probability: 0.2% (6th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
Elevated
6.2EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 6.2Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

jq is a command-line JSON processor. In versions 1.8.1 and below, functions jv_setpath(), jv_getpath(), and delpaths_sorted() in jq's src/jv_aux.c use unbounded recursion whose depth is controlled by the length of a caller-supplied path array, with no depth limit enforced. An attacker can supply a JSON document containing a flat array of ~65,000 integers (~200 KB) that, when used as a path argument by a trusted jq filter, exhausts the C call stack and crashes the process with a segmentation fault (SIGSEGV). This bypass works because the existing MAX_PARSING_DEPTH (10,000) limit only protects the JSON parser, not runtime path operations where arrays can be programmatically constructed to arbitrary lengths. The impact is denial of service (unrecoverable crash) affecting any application or service that processes untrusted JSON input through jq's setpath, getpath, or delpaths builtins. This issue has been addressed in commit fb59f1491058d58bdc3e8dd28f1773d1ac690a1f.

CVSS v3
6.2
EG Score
6.2MEDIUMmedium confidence
EG Risk
44
EG Risk 44/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity62% × 45%
Impact severity (EG Severity): CVSS 6.2 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
6th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (6.2): severity, escalated by confirmed exploitation. This CVE's 6.2 is its impact severity (EG Severity), not escalated.

EG Severity
6.2 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

April 13, 2026

Last Modified

April 21, 2026

Advisory Details (3)

Auto-updated Aug 2, 2026
Patch available. Sources: github_commit, github.
GitHub advisoryMentions a patch (unverified)

Unbounded Recursion in jv_setpath() / jv_getpath() / delpaths_sorted() · Advisory · jqlang/jq · GitHub

https://github.com/jqlang/jq/security/advisories/GHSA-xwrw-4f8h-rjvg
Web page

oss-security - Re: 7 vulnerabilities disclosed & patched in jq

http://www.openwall.com/lists/oss-security/2026/04/16/1
GitHub commit

commit fb59f1491058 (jqlang/jq)

Fix landed in jqlang/jq commit fb59f1491058 — awaiting tagged release

https://github.com/jqlang/jq/commit/fb59f1491058d58bdc3e8dd28f1773d1ac690a1f

Vendor Advisories for CVE-2026-33947(2)

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

Patch Availability(3)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulibjq1 (1.7.1-3ubuntu0.24.04.2) @ noble2026-06-14ubuntu
ubuntulibjq1 (1.8.1-4ubuntu2) @ resolute2026-06-14ubuntu
redhatjq-main-1.8.1-3.hum12026-04-16redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(7 across 7 ecosystems)
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
jq—
  • every version up to 1.8.2-r0: fixed in 1.8.2-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
jq—
  • every version up to 1.8.2-r0: fixed in 1.8.2-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
jq—
  • every version up to 1.8.2-r0: fixed in 1.8.2-r0
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
jq1.6-2.1, 1.6-2.1+deb11u1
  • every version up to 1.6-2.1+deb11u2: fixed in 1.6-2.1+deb11u2
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
jq1.6-2.1, 1.6-2.1+deb12u1
  • every version up to 1.6-2.1+deb12u2: fixed in 1.6-2.1+deb12u2
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
jq1.7.1-6+deb13u1
  • every version up to 1.7.1-6+deb13u2: fixed in 1.7.1-6+deb13u2
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
jq1.8.0-1, 1.8.1-1, 1.8.1-2, 1.8.1-3, 1.8.1-4
  • every version up to 1.8.1-5: fixed in 1.8.1-5
—

Weakness Classification(1)

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

Additional Vendor Advisories

(2)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 8× in last 7d / 31× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 98 of 206 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 2 repeat rows among the latest 100 are merged into the row they repeat. The 108 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  2. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  3. 2026-10-18 03:46 UTCEG score recompute
  4. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  5. 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  6. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  7. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  8. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  9. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  10. 2026-10-12 16:13 UTCEG score recompute
  11. 2026-10-11 19:55 UTCEG score recompute
  12. 2026-10-11 17:08 UTCEG score recompute
  13. 2026-10-11 14:35 UTCEG score recompute
  14. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  15. 2026-10-10 20:23 UTCOSV refresh
  16. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  17. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  18. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  19. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  20. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  21. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  22. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  23. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  24. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  25. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 6th percentile
Show 73 more
  1. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  2. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  3. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  4. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  5. 2026-09-21 07:49 UTCOSV refresh
  6. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  7. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  8. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  9. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  10. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  11. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  12. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  13. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  14. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  15. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  16. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  17. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  18. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  19. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  20. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  21. 2026-09-02 05:28 UTCOSV refresh
  22. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  23. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  24. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  25. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  26. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  27. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  28. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  29. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  30. 2026-08-24 14:17 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  31. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  32. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  33. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  34. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  35. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  36. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  37. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  38. 2026-08-16 06:52 UTCEG score recompute
  39. 2026-08-16 06:52 UTCVendor advisory
  40. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  41. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  42. 2026-08-14 04:54 UTCEG score recompute
  43. 2026-08-14 04:54 UTCVendor advisory
  44. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  45. 2026-08-13 00:08 UTCEG score recompute
  46. 2026-08-13 00:08 UTCVendor advisory
  47. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  48. 2026-08-12 01:29 UTCEG score recompute
  49. 2026-08-12 01:29 UTCVendor advisory
  50. 2026-08-11 02:50 UTCEG score recompute
  51. 2026-08-11 02:50 UTCVendor advisory
  52. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  53. 2026-08-10 02:56 UTCEG score recompute
  54. 2026-08-10 02:56 UTCVendor advisory
  55. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  56. 2026-08-09 04:17 UTCEG score recompute
  57. 2026-08-09 04:17 UTCVendor advisory
  58. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  59. 2026-08-07 13:55 UTCEG score recompute
  60. 2026-08-07 13:55 UTCVendor advisory
  61. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  62. 2026-08-05 23:33 UTCEG score recompute
  63. 2026-08-05 23:33 UTCVendor advisory
  64. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  65. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  66. 2026-08-04 10:38 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  67. 2026-08-03 21:47 UTCEG score recompute
  68. 2026-08-03 21:47 UTCVendor advisory
  69. 2026-08-03 10:36 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  70. 2026-08-02 13:32 UTCEG score recompute
  71. 2026-08-02 13:32 UTCVendor advisory
  72. 2026-08-02 02:27 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  73. 2026-08-01 04:16 UTCEPSS rescoreEPSS 0.2% · 14th percentile

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Frequently asked(5)

What is CVE-2026-33947?
CVE-2026-33947 is a medium-severity vulnerability; its CVE record was published on April 13, 2026. jq is a command-line JSON processor. In versions 1.8.1 and below, functions jvsetpath(), jvgetpath(), and delpathssorted() in jq's src/jvaux.c use unbounded recursion whose depth is controlled by the length of a caller-supplied path array, with no depth limit enforced. An attacker can supply a JSON…
When was the CVE record for CVE-2026-33947 published?
The CVE record for CVE-2026-33947 was published on April 13, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of April 21, 2026; the record at its source may have been updated since.
Is CVE-2026-33947 actively exploited?
CVE-2026-33947 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (6th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-33947?
CVE-2026-33947 has a CVSS v3 base score of 6.2 (NVD).
How do I remediate CVE-2026-33947?
A fix for CVE-2026-33947 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-33947 are linked in the Vendor Advisories panel on this page.

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