CVE-2026-94543

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under NVD CVSS v3. EPSS exploit probability: 0.3% (19th percentile of EPSS-scored CVEs). 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
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 5.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Next.js is a React framework for building full-stack web applications. From 15.0.0 until 15.5.27 and 16.3.8, self-hosted applications using the Pages Router with statically generated or Incremental Static Regeneration pages can key a response cache entry without sufficiently binding it to the source route. A request can replace one page's cache entry with content from a different route, causing the affected page to serve incorrect content to every visitor until revalidation. Applications deployed on Vercel are not affected. This issue is fixed in versions 15.5.27 and 16.3.8.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
39
EG Risk 39/100CISA SSVC

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
Severity53% × 45%
Exploitation0% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.3%
EPSS %ILE
19th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

October 2, 2026

Last Modified

October 6, 2026

Advisory Details (3)

Auto-updated Oct 2, 2026
Patch available. Sources: github, github_release.
github_release Patch Available

v16.3.8

Patch available: vercel/next.js v16.3.8

https://github.com/vercel/next.js/releases/tag/v16.3.8
github_release Patch Available

v15.5.27

Patch available: vercel/next.js v15.5.27

https://github.com/vercel/next.js/releases/tag/v15.5.27
githubMentions a patch (unverified)

Cache poisoning of SSG and ISR pages in self-hosted Next.js applications · Advisory · vercel/next.js · GitHub

https://github.com/vercel/next.js/security/advisories/GHSA-4jqv-mc3x-m676

Vendor Advisories for CVE-2026-94543(1)

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

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
next—
  • 15.0.0 up to 15.5.27: fixed in 15.5.27
  • 16.0.0 up to 16.3.8: fixed in 16.3.8
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 17× 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. 2026-10-09 20:26 UTCEG score recompute
  2. 2026-10-09 20:08 UTCEPSS rescore
  3. 2026-10-08 19:43 UTCEG score recompute
  4. 2026-10-08 17:14 UTCEPSS rescore
  5. 2026-10-07 23:48 UTCEPSS rescore
  6. 2026-10-06 16:37 UTCEG score recompute
  7. 2026-10-06 15:49 UTCEG score recompute
  8. 2026-10-06 15:19 UTCEPSS rescore
  9. 2026-10-05 17:44 UTCEPSS rescore
  10. 2026-10-05 15:07 UTCEG score recompute▼ 1.00
  11. 2026-10-05 15:04 UTCNVD updateCVSS v3 → 5.3
  12. 2026-10-04 23:23 UTCEPSS rescore
  13. 2026-10-03 18:57 UTCEG score recompute
  14. 2026-10-03 14:26 UTCEPSS rescore
  15. 2026-10-02 16:28 UTCEG score recompute
  16. 2026-10-02 15:31 UTCEG score recompute
  17. 2026-10-02 15:30 UTCMITRE cvelistV5first tracked

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-94543?
CVE-2026-94543 is a medium vulnerability published on October 2, 2026. Next.js is a React framework for building full-stack web applications. From 15.0.0 until 15.5.27 and 16.3.8, self-hosted applications using the Pages Router with statically generated or Incremental Static Regeneration pages can key a response cache entry without sufficiently binding it to the…
When was CVE-2026-94543 disclosed?
CVE-2026-94543 was first published on October 2, 2026, with the most recent update on October 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-94543 actively exploited?
CVE-2026-94543 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (19th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-94543?
CVE-2026-94543 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-94543?
A fix for CVE-2026-94543 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-94543 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-94543

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