CVE-2026-85979

HIGHPre-NVD 8.68.6—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 1.0%, top 39% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
8.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.6Exploit: None knownExposed: 0

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

Affected versions of Puppet Enterprise contain a command injection vulnerability. An authenticated user with Puppet administrative privileges can inject arbitrary shell commands by providing a specially crafted value for this parameter, which is passed to a shell execution context without sufficient sanitization. Because the resulting commands are executed with root privileges, successful exploitation can lead to full compromise of the affected system. 

It affects Puppet Enterprise 2023.8.0 through 2023.8.10 and Puppet Enterprise 2025.0.0 through 2025.11.2.

This has been resolved in Puppet Enterprise 2023.8.11 and Puppet Enterprise 2025.11.3.

CVSS v3
8.6
EG Score
8.6(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity86% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
61%
KEV
Not listed

Published

September 11, 2026

Last Modified

September 18, 2026

Advisory Details (1)

Auto-updated Sep 11, 2026
No patch confirmed yet.
generic

Perforce Support Portal

https://portal.perforce.com/s/cve/a91Qi000003CybNIAS/command-injection-in-puppet-enterprise

Vendor Advisories for CVE-2026-85979(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(3)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 29× in last 7d / 40× 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. 2026-09-20 09:05 UTCGHSA enrichment
  2. 2026-09-19 20:34 UTCEG score recompute
  3. 2026-09-19 20:34 UTCGHSA enrichment
  4. 2026-09-19 08:03 UTCGHSA enrichment
  5. 2026-09-18 19:33 UTCEG score recompute
  6. 2026-09-18 19:33 UTCGHSA enrichment
  7. 2026-09-18 19:28 UTCEPSS rescore
  8. 2026-09-18 12:30 UTCGHSA enrichment
  9. 2026-09-17 23:59 UTCEG score recompute
  10. 2026-09-17 23:59 UTCGHSA enrichment
  11. 2026-09-17 19:32 UTCEPSS rescore
  12. 2026-09-17 11:28 UTCGHSA enrichment
  13. 2026-09-16 22:56 UTCEG score recompute
  14. 2026-09-16 22:56 UTCGHSA enrichment
  15. 2026-09-16 14:09 UTCEPSS rescore
  16. 2026-09-16 10:25 UTCEG score recompute
  17. 2026-09-16 10:25 UTCGHSA enrichment
  18. 2026-09-16 09:57 UTCEG score recompute
  19. 2026-09-16 09:56 UTCGHSA enrichment
  20. 2026-09-16 05:15 UTCEPSS rescore
  21. 2026-09-15 21:34 UTCGHSA enrichment
  22. 2026-09-15 09:02 UTCEG score recompute
  23. 2026-09-15 09:02 UTCGHSA enrichment
  24. 2026-09-15 03:12 UTCEPSS rescore
  25. 2026-09-15 03:12 UTCEPSS rescore
Show 15 more
  1. 2026-09-14 20:32 UTCGHSA enrichment
  2. 2026-09-14 08:01 UTCGHSA enrichment
  3. 2026-09-13 19:31 UTCEG score recompute
  4. 2026-09-13 19:31 UTCGHSA enrichment
  5. 2026-09-13 07:00 UTCGHSA enrichment
  6. 2026-09-12 18:30 UTCEG score recompute
  7. 2026-09-12 18:30 UTCGHSA enrichment
  8. 2026-09-12 05:59 UTCGHSA enrichment
  9. 2026-09-11 17:29 UTCEG score recompute
  10. 2026-09-11 17:29 UTCGHSA enrichment
  11. 2026-09-11 16:30 UTCEG score recompute
  12. 2026-09-11 16:30 UTCGHSA enrichment
  13. 2026-09-11 15:19 UTCEG score recompute
  14. 2026-09-11 14:44 UTCEG score recompute
  15. 2026-09-11 14:43 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-85979?
CVE-2026-85979 is a high vulnerability published on September 11, 2026. Affected versions of Puppet Enterprise contain a command injection vulnerability. An authenticated user with Puppet administrative privileges can inject arbitrary shell commands by providing a specially crafted value for this parameter, which is passed to a shell execution context without…
When was CVE-2026-85979 disclosed?
CVE-2026-85979 was first published in the National Vulnerability Database on September 11, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-85979 actively exploited?
CVE-2026-85979 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 39.5% of all scored CVEs.
What is the CVSS score of CVE-2026-85979?
CVE-2026-85979 has a CVSS v3 base score of 8.6 (NVD).
How do I remediate CVE-2026-85979?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-85979, 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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