CVE-2026-84647

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-02. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

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

In Stapler 2107.v8dfcb_e8ed317 and earlier, except 2088.2093.vd7c3e58008a_6, included in Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, Stapler does not restrict the types of objects that can be instantiated via form data binding to those compatible with the expected field type, allowing attackers with Overall/Read permission to instantiate types related to configuration for which that field type was not intended.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity88% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
37%
KEV
Not listed

Published

September 2, 2026

Last Modified

September 17, 2026

Advisory Details (1)

Auto-updated Sep 2, 2026
No patch confirmed yet.
generic

Jenkins Security Advisory 2026-09-02

https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-3915

Vendor Advisories for CVE-2026-84647(1)

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 27× in last 7d / 72× 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. 2026-09-21 00:43 UTCEG score recompute
  2. 2026-09-21 00:43 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 11:55 UTCGHSA enrichment
  5. 2026-09-19 22:59 UTCEG score recompute
  6. 2026-09-19 22:59 UTCGHSA enrichment
  7. 2026-09-19 10:11 UTCGHSA enrichment
  8. 2026-09-18 21:24 UTCEG score recompute
  9. 2026-09-18 21:24 UTCGHSA enrichment
  10. 2026-09-18 19:28 UTCEPSS rescore
  11. 2026-09-18 08:08 UTCEG score recompute
  12. 2026-09-18 08:08 UTCGHSA enrichment
  13. 2026-09-17 19:32 UTCEPSS rescore
  14. 2026-09-17 19:20 UTCGHSA enrichment
  15. 2026-09-17 14:18 UTCGHSA enrichment
  16. 2026-09-17 01:25 UTCEG score recompute
  17. 2026-09-17 01:25 UTCGHSA enrichment
  18. 2026-09-16 14:09 UTCEPSS rescore
  19. 2026-09-16 12:38 UTCEG score recompute
  20. 2026-09-16 12:37 UTCGHSA enrichment
  21. 2026-09-16 05:15 UTCEPSS rescore
  22. 2026-09-15 23:50 UTCGHSA enrichment
  23. 2026-09-15 11:02 UTCEG score recompute
  24. 2026-09-15 11:02 UTCGHSA enrichment
  25. 2026-09-15 03:12 UTCEPSS rescore
Show 47 more
  1. 2026-09-15 03:12 UTCEPSS rescore
  2. 2026-09-14 22:15 UTCGHSA enrichment
  3. 2026-09-14 09:27 UTCGHSA enrichment
  4. 2026-09-13 20:39 UTCEG score recompute
  5. 2026-09-13 20:39 UTCGHSA enrichment
  6. 2026-09-13 07:51 UTCGHSA enrichment
  7. 2026-09-12 19:04 UTCEG score recompute
  8. 2026-09-12 19:04 UTCGHSA enrichment
  9. 2026-09-12 06:16 UTCGHSA enrichment
  10. 2026-09-11 17:29 UTCEG score recompute
  11. 2026-09-11 17:29 UTCGHSA enrichment
  12. 2026-09-11 14:53 UTCEPSS rescore
  13. 2026-09-11 14:53 UTCEPSS rescore
  14. 2026-09-11 04:41 UTCGHSA enrichment
  15. 2026-09-10 15:54 UTCEG score recompute
  16. 2026-09-10 15:54 UTCGHSA enrichment
  17. 2026-09-10 03:07 UTCGHSA enrichment
  18. 2026-09-09 14:19 UTCGHSA enrichment
  19. 2026-09-09 01:32 UTCEG score recompute
  20. 2026-09-09 01:32 UTCGHSA enrichment
  21. 2026-09-08 22:01 UTCEPSS rescore
  22. 2026-09-08 12:44 UTCGHSA enrichment
  23. 2026-09-07 23:40 UTCEG score recompute
  24. 2026-09-07 23:40 UTCGHSA enrichment
  25. 2026-09-07 10:52 UTCGHSA enrichment
  26. 2026-09-06 22:03 UTCEG score recompute
  27. 2026-09-06 22:03 UTCGHSA enrichment
  28. 2026-09-06 13:48 UTCEPSS rescore
  29. 2026-09-06 09:16 UTCGHSA enrichment
  30. 2026-09-05 20:28 UTCEG score recompute
  31. 2026-09-05 20:28 UTCGHSA enrichment
  32. 2026-09-05 15:31 UTCEPSS rescore
  33. 2026-09-05 07:41 UTCGHSA enrichment
  34. 2026-09-04 18:53 UTCEG score recompute
  35. 2026-09-04 18:53 UTCGHSA enrichment
  36. 2026-09-04 06:05 UTCEG score recompute
  37. 2026-09-04 06:05 UTCGHSA enrichment
  38. 2026-09-04 05:07 UTCEPSS rescore
  39. 2026-09-03 17:15 UTCGHSA enrichment
  40. 2026-09-03 07:25 UTCGHSA enrichment
  41. 2026-09-02 18:37 UTCEG score recompute
  42. 2026-09-02 18:37 UTCGHSA enrichment
  43. 2026-09-02 17:46 UTCEG score recompute▲ 8.80
  44. 2026-09-02 17:45 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  45. 2026-09-02 16:30 UTCNVD update
  46. 2026-09-02 15:51 UTCEG score recompute
  47. 2026-09-02 15:46 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-84647?
CVE-2026-84647 is a high vulnerability published on September 2, 2026. In Stapler 2107.v8dfcbe8ed317 and earlier, except 2088.2093.vd7c3e58008a6, included in Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, Stapler does not restrict the types of objects that can be instantiated via form data binding to those compatible with the expected field type, allowing…
When was CVE-2026-84647 disclosed?
CVE-2026-84647 was first published in the National Vulnerability Database on September 2, 2026, with the most recent update on September 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-84647 actively exploited?
CVE-2026-84647 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 63.4% of all scored CVEs.
What is the CVSS score of CVE-2026-84647?
CVE-2026-84647 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-84647?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-84647, 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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