CVE-2026-85656

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-04. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.8Exploit: None knownExposed: 0

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

An OS command injection issue in the log4j-cve-2021-44228-hotpatch package in Amazon Linux before 1.3-9 might allow a local user to execute arbitrary commands with root privileges via a Java process whose executable path contains embedded newline characters.

CVSS v3
7.8
EG Score
7.8(high)
EG Risk
36(Track)
EG Risk 36/100SSVC: 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
Severity78% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
65%
KEV
Not listed

Published

September 4, 2026

Last Modified

September 8, 2026

Advisory Details (2)

Auto-updated Sep 4, 2026
No patch confirmed yet.
generic

CVE-2026-85656 - OS command injection in Amazon log4j-cve-2021-44228-hotpatch

https://aws.amazon.com/security/security-bulletins/2026-098-aws/
generic

ALAS2-2026-3784

https://alas.aws.amazon.com/AL2/ALAS2-2026-3784.html

Vendor Advisories for CVE-2026-85656(2)

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 / 57× 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. 2026-09-18 22:49 UTCEG score recompute
  2. 2026-09-18 22:49 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 10:28 UTCGHSA enrichment
  5. 2026-09-17 22:06 UTCEG score recompute
  6. 2026-09-17 22:06 UTCGHSA enrichment
  7. 2026-09-17 19:32 UTCEPSS rescore
  8. 2026-09-17 09:44 UTCGHSA enrichment
  9. 2026-09-16 21:22 UTCEG score recompute
  10. 2026-09-16 21:22 UTCGHSA enrichment
  11. 2026-09-16 14:09 UTCEPSS rescore
  12. 2026-09-16 09:00 UTCEG score recompute
  13. 2026-09-16 09:00 UTCGHSA enrichment
  14. 2026-09-16 05:15 UTCEPSS rescore
  15. 2026-09-15 19:25 UTCGHSA enrichment
  16. 2026-09-15 07:03 UTCEG score recompute
  17. 2026-09-15 07:03 UTCGHSA enrichment
  18. 2026-09-15 03:12 UTCEPSS rescore
  19. 2026-09-15 03:12 UTCEPSS rescore
  20. 2026-09-14 18:41 UTCGHSA enrichment
  21. 2026-09-14 06:19 UTCGHSA enrichment
  22. 2026-09-13 17:58 UTCEG score recompute
  23. 2026-09-13 17:58 UTCGHSA enrichment
  24. 2026-09-13 05:36 UTCGHSA enrichment
  25. 2026-09-12 17:15 UTCEG score recompute
Show 32 more
  1. 2026-09-12 17:15 UTCGHSA enrichment
  2. 2026-09-12 04:53 UTCGHSA enrichment
  3. 2026-09-11 16:31 UTCEG score recompute
  4. 2026-09-11 16:31 UTCGHSA enrichment
  5. 2026-09-11 14:53 UTCEPSS rescore
  6. 2026-09-11 14:53 UTCEPSS rescore
  7. 2026-09-11 04:07 UTCGHSA enrichment
  8. 2026-09-10 15:45 UTCEG score recompute
  9. 2026-09-10 15:45 UTCGHSA enrichment
  10. 2026-09-10 03:23 UTCGHSA enrichment
  11. 2026-09-09 15:01 UTCGHSA enrichment
  12. 2026-09-09 02:40 UTCEG score recompute
  13. 2026-09-09 02:40 UTCGHSA enrichment
  14. 2026-09-08 22:01 UTCEPSS rescore
  15. 2026-09-08 14:18 UTCGHSA enrichment
  16. 2026-09-08 09:58 UTCGHSA enrichment
  17. 2026-09-07 20:47 UTCEG score recompute
  18. 2026-09-07 20:47 UTCGHSA enrichment
  19. 2026-09-07 08:25 UTCGHSA enrichment
  20. 2026-09-06 20:00 UTCEG score recompute
  21. 2026-09-06 20:00 UTCGHSA enrichment
  22. 2026-09-06 13:48 UTCEPSS rescore
  23. 2026-09-06 07:38 UTCGHSA enrichment
  24. 2026-09-05 19:16 UTCEG score recompute
  25. 2026-09-05 19:16 UTCGHSA enrichment
  26. 2026-09-05 15:31 UTCEPSS rescore
  27. 2026-09-05 06:55 UTCGHSA enrichment
  28. 2026-09-04 18:33 UTCEG score recompute
  29. 2026-09-04 18:33 UTCGHSA enrichment
  30. 2026-09-04 17:55 UTCEG score recompute
  31. 2026-09-04 17:45 UTCEG score recompute
  32. 2026-09-04 17:44 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-85656?
CVE-2026-85656 is a high vulnerability published on September 4, 2026. An OS command injection issue in the log4j-cve-2021-44228-hotpatch package in Amazon Linux before 1.3-9 might allow a local user to execute arbitrary commands with root privileges via a Java process whose executable path contains embedded newline characters.
When was CVE-2026-85656 disclosed?
CVE-2026-85656 was first published in the National Vulnerability Database on September 4, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-85656 actively exploited?
CVE-2026-85656 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 35.3% of all scored CVEs.
What is the CVSS score of CVE-2026-85656?
CVE-2026-85656 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-85656?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-85656, 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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