CVE-2026-84671

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: 1%CVSS: 8.8Exploit: None knownExposed: 0

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

Jenkins File Parameter Plugin 425.v3fa_801681b_5e and earlier allows writing files to arbitrary locations on the Jenkins controller file system through Stapler data binding, which can lead to remote code execution.

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%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
56%
KEV
Not listed

Published

September 2, 2026

Last Modified

September 3, 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-4093

Vendor Advisories for CVE-2026-84671(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 26× in last 7d / 89× 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. 2026-09-25 01:50 UTCEG score recompute
  2. 2026-09-25 01:50 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-24 13:47 UTCGHSA enrichment
  5. 2026-09-24 01:44 UTCEG score recompute
  6. 2026-09-24 01:44 UTCGHSA enrichment
  7. 2026-09-23 17:54 UTCEPSS rescore
  8. 2026-09-23 13:42 UTCGHSA enrichment
  9. 2026-09-23 01:40 UTCEG score recompute
  10. 2026-09-23 01:40 UTCGHSA enrichment
  11. 2026-09-22 16:01 UTCEPSS rescore
  12. 2026-09-22 13:38 UTCGHSA enrichment
  13. 2026-09-22 01:35 UTCEG score recompute
  14. 2026-09-22 01:35 UTCGHSA enrichment
  15. 2026-09-21 21:09 UTCEPSS rescore
  16. 2026-09-21 13:33 UTCGHSA enrichment
  17. 2026-09-21 01:31 UTCEG score recompute
  18. 2026-09-21 01:31 UTCGHSA enrichment
  19. 2026-09-20 20:16 UTCEPSS rescore
  20. 2026-09-20 13:23 UTCGHSA enrichment
  21. 2026-09-20 01:13 UTCEG score recompute
  22. 2026-09-20 01:13 UTCGHSA enrichment
  23. 2026-09-19 13:11 UTCGHSA enrichment
  24. 2026-09-19 01:08 UTCEG score recompute
  25. 2026-09-19 01:08 UTCGHSA enrichment
Show 64 more
  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-18 13:06 UTCGHSA enrichment
  3. 2026-09-18 01:04 UTCEG score recompute
  4. 2026-09-18 01:04 UTCGHSA enrichment
  5. 2026-09-17 19:32 UTCEPSS rescore
  6. 2026-09-17 13:02 UTCGHSA enrichment
  7. 2026-09-17 00:27 UTCEG score recompute
  8. 2026-09-17 00:27 UTCGHSA enrichment
  9. 2026-09-16 14:09 UTCEPSS rescore
  10. 2026-09-16 12:25 UTCEG score recompute
  11. 2026-09-16 12:25 UTCGHSA enrichment
  12. 2026-09-16 05:15 UTCEPSS rescore
  13. 2026-09-16 00:22 UTCGHSA enrichment
  14. 2026-09-15 12:17 UTCEG score recompute
  15. 2026-09-15 12:17 UTCGHSA enrichment
  16. 2026-09-15 03:12 UTCEPSS rescore
  17. 2026-09-15 03:12 UTCEPSS rescore
  18. 2026-09-15 00:15 UTCGHSA enrichment
  19. 2026-09-14 12:12 UTCGHSA enrichment
  20. 2026-09-14 00:10 UTCEG score recompute
  21. 2026-09-14 00:09 UTCGHSA enrichment
  22. 2026-09-13 12:05 UTCGHSA enrichment
  23. 2026-09-13 00:02 UTCEG score recompute
  24. 2026-09-13 00:02 UTCGHSA enrichment
  25. 2026-09-12 12:00 UTCGHSA enrichment
  26. 2026-09-11 23:57 UTCEG score recompute
  27. 2026-09-11 23:57 UTCGHSA enrichment
  28. 2026-09-11 14:53 UTCEPSS rescore
  29. 2026-09-11 14:53 UTCEPSS rescore
  30. 2026-09-11 11:55 UTCEG score recompute
  31. 2026-09-11 11:55 UTCGHSA enrichment
  32. 2026-09-10 23:52 UTCGHSA enrichment
  33. 2026-09-10 11:34 UTCEG score recompute
  34. 2026-09-10 11:34 UTCGHSA enrichment
  35. 2026-09-09 23:31 UTCGHSA enrichment
  36. 2026-09-09 11:15 UTCGHSA enrichment
  37. 2026-09-08 23:12 UTCEG score recompute
  38. 2026-09-08 23:12 UTCGHSA enrichment
  39. 2026-09-08 22:01 UTCEPSS rescore
  40. 2026-09-08 05:39 UTCGHSA enrichment
  41. 2026-09-07 17:34 UTCEG score recompute
  42. 2026-09-07 17:34 UTCGHSA enrichment
  43. 2026-09-07 05:32 UTCGHSA enrichment
  44. 2026-09-06 17:30 UTCEG score recompute
  45. 2026-09-06 17:30 UTCGHSA enrichment
  46. 2026-09-06 13:48 UTCEPSS rescore
  47. 2026-09-06 05:27 UTCGHSA enrichment
  48. 2026-09-05 17:25 UTCEG score recompute
  49. 2026-09-05 17:25 UTCGHSA enrichment
  50. 2026-09-05 15:31 UTCEPSS rescore
  51. 2026-09-05 05:23 UTCGHSA enrichment
  52. 2026-09-04 17:21 UTCEG score recompute
  53. 2026-09-04 17:21 UTCGHSA enrichment
  54. 2026-09-04 05:18 UTCEG score recompute
  55. 2026-09-04 05:18 UTCGHSA enrichment
  56. 2026-09-04 05:07 UTCEPSS rescore
  57. 2026-09-03 17:14 UTCGHSA enrichment
  58. 2026-09-03 05:41 UTCEG score recompute
  59. 2026-09-03 05:41 UTCGHSA enrichment
  60. 2026-09-02 17:03 UTCEG score recompute▲ 8.80
  61. 2026-09-02 17:01 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  62. 2026-09-02 16:30 UTCNVD update
  63. 2026-09-02 15:50 UTCEG score recompute
  64. 2026-09-02 15:46 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-84671?
CVE-2026-84671 is a high vulnerability published on September 2, 2026. Jenkins File Parameter Plugin 425.v3fa801681b5e and earlier allows writing files to arbitrary locations on the Jenkins controller file system through Stapler data binding, which can lead to remote code execution.
When was CVE-2026-84671 disclosed?
CVE-2026-84671 was first published in the National Vulnerability Database on September 2, 2026, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-84671 actively exploited?
CVE-2026-84671 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 44.2% of all scored CVEs.
What is the CVSS score of CVE-2026-84671?
CVE-2026-84671 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-84671?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-84671, 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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