CVE-2026-40090

HIGHNVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.1 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 76% 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, nvd
Trending — 3 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

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

Zarf is an Airgap Native Packager Manager for Kubernetes. Versions 0.23.0 through 0.74.1 contain an arbitrary file write vulnerability in the zarf package inspect sbom and zarf package inspect documentation subcommands. These subcommands output file paths are constructed by joining a user-controlled output directory with the package's Metadata.Name field read directly from the untrusted package's zarf.yaml manifest. Although Metadata.Name is validated against a regex on package creation, an attacker can unarchive a package to modify the Metadata.Name field to contain path traversal sequences such as ../../etc/cron.d/malicious or absolute paths like /home/user/.ssh/authorized_keys, along with the corresponding files inside SBOMS.tar. This allows writing attacker-controlled content to arbitrary filesystem locations within the permissions of the user running the inspect command. This issue has been fixed in version 0.74.2.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
24%
KEV
Not listed

Published

April 15, 2026

Last Modified

April 23, 2026

Advisory Details (2)

Auto-updated Jun 12, 2026
Patch available. Sources: github_pr, github.
github Patch Available

Path Traversal via Malicious Package Metadata.Name — Arbitrary File Write · Advisory · zarf-dev/zarf · GitHub

Affected: version v0.74.2

https://github.com/zarf-dev/zarf/security/advisories/GHSA-pj97-4p9w-gx3q
github_pr

fix: sanitize inspect output path

Fix merged in zarf-dev/zarf PR #4793 on 2026-04-08 — awaiting tagged release

https://github.com/zarf-dev/zarf/pull/4793

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/zarf-dev/zarf—0.74.2—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 38× 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. 2026-07-26 14:54 UTCEPSS rescore
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  3. 2026-07-25 14:18 UTCEPSS rescore
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  7. 2026-07-23 14:18 UTCEPSS rescore
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  9. 2026-07-23 03:10 UTCEG score recompute
  10. 2026-07-22 14:08 UTCEPSS rescore
  11. 2026-07-20 17:08 UTCEPSS rescore
  12. 2026-07-20 10:02 UTCOSV refresh
  13. 2026-07-19 14:31 UTCEPSS rescore
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  1. 2026-07-08 15:15 UTCEPSS rescore
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  20. 2026-06-21 14:56 UTCEPSS rescore
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  22. 2026-06-21 01:59 UTCEPSS rescore
  23. 2026-06-19 19:25 UTCEPSS rescore
  24. 2026-06-18 17:52 UTCEPSS rescore
  25. 2026-06-18 17:52 UTCEPSS rescore
  26. 2026-06-17 17:53 UTCEPSS rescore
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  28. 2026-06-15 17:49 UTCEPSS rescore
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  50. 2026-06-01 13:52 UTCEPSS rescore
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  58. 2026-05-29 13:44 UTCEPSS rescore
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  60. 2026-05-28 13:44 UTCEPSS rescore
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  69. 2026-05-20 22:38 UTCEPSS rescore
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  71. 2026-05-20 17:13 UTCEG score recompute
  72. 2026-05-20 11:22 UTCEPSS rescore
  73. 2026-05-20 11:22 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-40090?
CVE-2026-40090 is a high vulnerability published on April 15, 2026. Zarf is an Airgap Native Packager Manager for Kubernetes. Versions 0.23.0 through 0.74.1 contain an arbitrary file write vulnerability in the zarf package inspect sbom and zarf package inspect documentation subcommands. These subcommands output file paths are constructed by joining a…
When was CVE-2026-40090 disclosed?
CVE-2026-40090 was first published in the National Vulnerability Database on April 15, 2026, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-40090 actively exploited?
CVE-2026-40090 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 75.6% of all scored CVEs.
What is the CVSS score of CVE-2026-40090?
CVE-2026-40090 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-40090?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-40090, 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.

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