CVE-2026-46342

MEDIUMNVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.4 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 99% 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
5.4
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.4Exploit: NoneExposed: 0

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

Nuxt is an open-source web development framework for Vue.js. In Nuxt versions 3.1.0 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6 and @nuxt/nitro-server versions 3.20.0 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6, the /__nuxt_island/* endpoint accepts attacker-controlled props query/body parameters and renders any island component without verifying that the URL-resident hash (_.json) was actually issued for those inputs by . The hash is computed and embedded client-side but never validated server-side, so the same path can return materially different responses depending on the query. This issue has been patched in versions 3.21.6 and 4.4.6.

CVSS v3
5.4
EG Score
5.4(medium)
EPSS
0.6%
KEV
Not listed

Published

May 19, 2026

Last Modified

June 15, 2026

Advisory Details (2)

Auto-updated Jun 15, 2026
Patch available. Sources: github_pr, github.
github Patch Available

`__nuxt_island` response not bound to request props · Advisory · nuxt/nuxt · GitHub

https://github.com/nuxt/nuxt/security/advisories/GHSA-g8wj-3cr3-6w7v
github_pr

fix(nitro): validate island request hash matches props

Fix merged in nuxt/nuxt PR #35077 on 2026-05-13 — awaiting tagged release

https://github.com/nuxt/nuxt/pull/35077

Vendor Advisories for CVE-2026-46342(1)

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

Affected Packages

(2 across 1 ecosystem)
npm(2)
PackageVulnerable rangeFixed inDependents
nuxt—4.4.6—
@nuxt/nitro-server—4.4.6—

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 3× in last 7d / 30× 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. 2026-07-07 13:46 UTCEPSS rescore
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-04 06:31 UTCEPSS rescore
  4. 2026-07-01 15:07 UTCEPSS rescore
  5. 2026-06-30 23:22 UTCEPSS rescore
  6. 2026-06-29 20:41 UTCEG score recompute
  7. 2026-06-29 14:06 UTCEPSS rescore
  8. 2026-06-29 14:06 UTCEPSS rescore
  9. 2026-06-28 14:07 UTCEPSS rescore
  10. 2026-06-28 04:56 UTCEPSS rescore
  11. 2026-06-28 04:56 UTCEPSS rescore
  12. 2026-06-27 20:23 UTCEG score recompute
  13. 2026-06-26 19:43 UTCEG score recompute
  14. 2026-06-25 16:29 UTCEG score recompute▲ 3.10
  15. 2026-06-24 14:05 UTCEPSS rescore
  16. 2026-06-23 21:33 UTCEPSS rescore
  17. 2026-06-23 21:33 UTCEPSS rescore
  18. 2026-06-21 01:59 UTCEPSS rescore
  19. 2026-06-21 01:59 UTCEPSS rescore
  20. 2026-06-18 17:52 UTCEPSS rescore
  21. 2026-06-18 17:52 UTCEPSS rescore
  22. 2026-06-17 17:53 UTCEPSS rescore
  23. 2026-06-16 17:53 UTCEPSS rescore
  24. 2026-06-15 18:09 UTCNVD updateCVSS v3 → 5.4 · severity → MEDIUM
  25. 2026-06-15 17:49 UTCEPSS rescore
Show 6 more
  1. 2026-06-15 15:58 UTCEG score recompute
  2. 2026-06-13 23:00 UTCEPSS rescore
  3. 2026-06-12 23:12 UTCEPSS rescore
  4. 2026-06-12 16:13 UTCEG score recompute▲ 2.30
  5. 2026-06-12 16:12 UTCNVD updateCVSS v3 → 2.3 · CVSS v4 → 2.3
  6. 2026-05-24 06:13 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-46342?
CVE-2026-46342 is a medium vulnerability published on May 19, 2026. Nuxt is an open-source web development framework for Vue.js. In Nuxt versions 3.1.0 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6 and @nuxt/nitro-server versions 3.20.0 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6, the /nuxtisland/* endpoint accepts attacker-controlled props query/body…
When was CVE-2026-46342 disclosed?
CVE-2026-46342 was first published in the National Vulnerability Database on May 19, 2026, with the most recent update on June 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46342 actively exploited?
CVE-2026-46342 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-46342?
CVE-2026-46342 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2026-46342?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46342, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-46342

Explore →

Is Your Infrastructure Affected by CVE-2026-46342?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs