CVE-2026-84645

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.

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, objects of types marked as storing their configuration in independent top-level configuration files in Jenkins (such as the global configuration and jobs) can appear as nested field values in user-submitted config.xml documents and subsequently handle HTTP requests via Stapler, resulting in 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
50%
KEV
Not listed

Published

September 2, 2026

Last Modified

September 11, 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-3972

Vendor Advisories for CVE-2026-84645(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 25× in last 7d / 66× 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. 2026-09-19 05:56 UTCEG score recompute
  2. 2026-09-19 05:56 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 17:20 UTCGHSA enrichment
  5. 2026-09-18 04:43 UTCEG score recompute
  6. 2026-09-18 04:43 UTCGHSA enrichment
  7. 2026-09-17 19:32 UTCEPSS rescore
  8. 2026-09-17 16:07 UTCGHSA enrichment
  9. 2026-09-17 03:30 UTCGHSA enrichment
  10. 2026-09-16 14:53 UTCEG score recompute
  11. 2026-09-16 14:53 UTCGHSA enrichment
  12. 2026-09-16 14:09 UTCEPSS rescore
  13. 2026-09-16 05:15 UTCEPSS rescore
  14. 2026-09-16 02:14 UTCGHSA enrichment
  15. 2026-09-15 13:35 UTCEG score recompute
  16. 2026-09-15 13:35 UTCGHSA enrichment
  17. 2026-09-15 03:12 UTCEPSS rescore
  18. 2026-09-15 03:12 UTCEPSS rescore
  19. 2026-09-15 00:56 UTCGHSA enrichment
  20. 2026-09-14 12:20 UTCGHSA enrichment
  21. 2026-09-13 23:43 UTCEG score recompute
  22. 2026-09-13 23:43 UTCGHSA enrichment
  23. 2026-09-13 11:06 UTCGHSA enrichment
  24. 2026-09-12 22:29 UTCEG score recompute
  25. 2026-09-12 22:29 UTCGHSA enrichment
Show 41 more
  1. 2026-09-12 09:53 UTCGHSA enrichment
  2. 2026-09-11 21:16 UTCGHSA enrichment
  3. 2026-09-11 15:31 UTCEG score recompute
  4. 2026-09-11 15:31 UTCGHSA enrichment
  5. 2026-09-11 14:53 UTCEPSS rescore
  6. 2026-09-11 14:53 UTCEPSS rescore
  7. 2026-09-11 02:53 UTCGHSA enrichment
  8. 2026-09-10 14:16 UTCEG score recompute
  9. 2026-09-10 14:16 UTCGHSA enrichment
  10. 2026-09-10 01:39 UTCGHSA enrichment
  11. 2026-09-09 13:01 UTCGHSA enrichment
  12. 2026-09-09 00:23 UTCEG score recompute
  13. 2026-09-09 00:23 UTCGHSA enrichment
  14. 2026-09-08 22:01 UTCEPSS rescore
  15. 2026-09-08 11:03 UTCGHSA enrichment
  16. 2026-09-07 22:24 UTCEG score recompute
  17. 2026-09-07 22:24 UTCGHSA enrichment
  18. 2026-09-07 09:48 UTCGHSA enrichment
  19. 2026-09-06 21:10 UTCEG score recompute
  20. 2026-09-06 21:10 UTCGHSA enrichment
  21. 2026-09-06 13:48 UTCEPSS rescore
  22. 2026-09-06 08:33 UTCGHSA enrichment
  23. 2026-09-05 19:56 UTCEG score recompute
  24. 2026-09-05 19:56 UTCGHSA enrichment
  25. 2026-09-05 15:31 UTCEPSS rescore
  26. 2026-09-05 07:19 UTCGHSA enrichment
  27. 2026-09-04 18:42 UTCEG score recompute
  28. 2026-09-04 18:42 UTCGHSA enrichment
  29. 2026-09-04 05:51 UTCEG score recompute
  30. 2026-09-04 05:51 UTCGHSA enrichment
  31. 2026-09-04 05:07 UTCEPSS rescore
  32. 2026-09-03 17:15 UTCGHSA enrichment
  33. 2026-09-03 13:16 UTCGHSA enrichment
  34. 2026-09-03 04:56 UTCGHSA enrichment
  35. 2026-09-02 18:37 UTCEG score recompute
  36. 2026-09-02 18:37 UTCGHSA enrichment
  37. 2026-09-02 17:53 UTCEG score recompute▲ 8.80
  38. 2026-09-02 17:51 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  39. 2026-09-02 16:30 UTCNVD update
  40. 2026-09-02 15:51 UTCEG score recompute
  41. 2026-09-02 15:46 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-84645?
CVE-2026-84645 is a high vulnerability published on September 2, 2026. In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, objects of types marked as storing their configuration in independent top-level configuration files in Jenkins (such as the global configuration and jobs) can appear as nested field values in user-submitted config.xml documents and subsequently…
When was CVE-2026-84645 disclosed?
CVE-2026-84645 was first published in the National Vulnerability Database on September 2, 2026, with the most recent update on September 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-84645 actively exploited?
CVE-2026-84645 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 50.1% of all scored CVEs.
What is the CVSS score of CVE-2026-84645?
CVE-2026-84645 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-84645?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-84645, 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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