CVE-2026-66920

HIGHPre-NVD 8.28.2
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 8.2 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (37th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Trending — 3 sources updated this week

Also known asEUVD-2026-49796 (ENISA EUVD) · GHSA-cgxr-m8cj-3q4w (GitHub Security Advisories)Source: ENISA EUVD

8.2EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 8.2Exploit: None knownExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

Pivotick contains an uncontrolled-recursion vulnerability when processing caller-supplied graph and node data. The affected graph algorithms recursively traversed graph edges, while the JSON viewer recursively processed each level of a node’s data structure. A specially crafted graph containing an excessively long path, deeply nested properties, or circular object references could therefore exhaust the JavaScript call stack when Pivotick calculates a layout or displays a node in the inspection modal.

Successful exploitation may cause an uncaught exception, freeze the affected page, or crash the browser tab, resulting in a client-side denial of service. No confidentiality or integrity impact has been identified.

The patch replaces the recursive graph traversals with iterative stack-based implementations and limits the reachability calculation to 1,000,000 edge traversals. It also limits JSON rendering to 64 levels and detects circular references before descending further into an object.

CVSS v3
8.2
EG Score
8.2HIGHmedium confidence
EG Risk
37
EG Risk 37/100

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)
Severity82% × 45%
Impact severity (EG Severity): CVSS 8.2 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (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: An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.
EPSS PROB
0.4%
EPSS %ILE
37th
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 (8.2): severity, escalated by confirmed exploitation. This CVE's 8.2 is its impact severity (EG Severity), not escalated.

EG Severity
8.2 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-27). 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 every mission impact level.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 every mission impact level.

An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.

Exploitation none (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

July 28, 2026

Last Modified

October 24, 2026

Advisory Details (1)

Auto-updated Jul 28, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
GitHub commit

commit 66373141eb78 (Pivotick/Pivotick)

Fix landed in Pivotick/Pivotick commit 66373141eb78 — awaiting tagged release

https://github.com/Pivotick/Pivotick/commit/66373141eb7892fc29a3b42cfb2c160af16765fe

Vendor Advisories for CVE-2026-66920(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 12× in last 7d / 53× 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 99 of 262 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. 1 repeat row among the latest 100 is merged into the row it repeats. The 163 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  2. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  3. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  4. 2026-10-27 21:06 UTCEG score recompute
  5. 2026-10-27 21:06 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  6. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  7. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  8. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  9. 2026-10-25 14:10 UTCEG score recompute
  10. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  11. 2026-10-24 13:29 UTCEG score recompute
  12. 2026-10-24 13:29 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  13. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  14. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  15. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  16. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  17. 2026-10-20 09:04 UTCEG score recompute
  18. 2026-10-20 09:04 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  19. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  20. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  21. 2026-10-18 03:20 UTCEG score recompute
  22. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  23. 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  24. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  25. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 35th percentile
Show 74 more
  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  2. 2026-10-13 10:49 UTCEG score recompute
  3. 2026-10-13 10:49 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  4. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  5. 2026-10-12 15:46 UTCEG score recompute
  6. 2026-10-11 19:31 UTCEG score recompute
  7. 2026-10-11 16:46 UTCEG score recompute
  8. 2026-10-11 14:07 UTCEG score recompute
  9. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  11. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  12. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  13. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  14. 2026-10-07 00:05 UTCEG score recompute
  15. 2026-10-07 00:05 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  16. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  17. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  18. 2026-10-05 02:44 UTCEG score recompute
  19. 2026-10-05 02:44 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  20. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  21. 2026-10-04 07:10 UTCEG score recompute
  22. 2026-10-04 07:10 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  23. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  24. 2026-10-02 18:24 UTCEG score recompute
  25. 2026-10-02 18:24 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  26. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  27. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  28. 2026-10-01 15:00 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  29. 2026-10-01 03:44 UTCEG score recompute
  30. 2026-10-01 03:44 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  31. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  32. 2026-09-29 07:46 UTCEG score recompute
  33. 2026-09-29 07:46 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  34. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  35. 2026-09-28 03:24 UTCEG score recompute
  36. 2026-09-28 03:24 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  37. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  38. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  39. 2026-09-25 06:15 UTCEG score recompute
  40. 2026-09-25 06:15 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  41. 2026-09-24 09:12 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  42. 2026-09-23 21:56 UTCEG score recompute
  43. 2026-09-23 21:56 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  44. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  45. 2026-09-23 09:00 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  46. 2026-09-22 21:42 UTCEG score recompute
  47. 2026-09-22 21:42 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  48. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  49. 2026-09-20 00:36 UTCEG score recompute
  50. 2026-09-20 00:36 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  51. 2026-09-19 05:17 UTCEG score recompute
  52. 2026-09-19 05:17 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  53. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  54. 2026-09-18 17:57 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  55. 2026-09-18 02:07 UTCEG score recompute
  56. 2026-09-18 02:07 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  57. 2026-09-17 01:41 UTCEG score recompute
  58. 2026-09-17 01:41 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  59. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  60. 2026-09-16 05:53 UTCEG score recompute
  61. 2026-09-16 05:53 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  62. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  63. 2026-09-15 08:43 UTCEG score recompute
  64. 2026-09-15 08:42 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  65. 2026-09-14 15:18 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  66. 2026-09-14 03:13 UTCEG score recompute
  67. 2026-09-14 03:13 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  68. 2026-09-13 15:56 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  69. 2026-09-13 04:39 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  70. 2026-09-12 17:21 UTCEG score recompute
  71. 2026-09-12 17:21 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  72. 2026-09-12 06:04 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH
  73. 2026-09-11 18:47 UTCEG score recompute
  74. 2026-09-11 18:47 UTCGHSA enrichmentGHSA-cgxr-m8cj-3q4w · GitHub severity HIGH

Frequently asked(5)

What is CVE-2026-66920?
CVE-2026-66920 is a high-severity vulnerability; its CVE record was published on July 28, 2026. Pivotick contains an uncontrolled-recursion vulnerability when processing caller-supplied graph and node data. The affected graph algorithms recursively traversed graph edges, while the JSON viewer recursively processed each level of a node’s data structure. A specially crafted graph containing an…
When was the CVE record for CVE-2026-66920 published?
The CVE record for CVE-2026-66920 was published on July 28, 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 October 24, 2026; the record at its source may have been updated since.
Is CVE-2026-66920 actively exploited?
CVE-2026-66920 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (37th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-66920?
CVE-2026-66920 has a CVSS base score of 8.2 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-66920?
An upstream fix for CVE-2026-66920 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-66920 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-66920

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