CVE-2026-94543

MEDIUMNVD 5.35.3
EchelonGraph scoreHIGH confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 5.3 from GitHub Security Advisory (severity: MODERATE) published 2026-10-07. NVD baseline CVSS 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 3 sources updated this week

Also known asEUVD-2026-91670 (ENISA EUVD) · GHSA-4jqv-mc3x-m676 (GitHub Security Advisories)Source: ENISA EUVD

5.3EG
EchelonGraph verdictMonitorRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.5%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
5.3MEDIUMhigh confidence
EG Risk
39
EG Risk 39/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity53% × 45%
Impact severity (EG Severity): CVSS 5.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
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
0.5%
EPSS %ILE
43rd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (5.3): severity, escalated by confirmed exploitation. This CVE's 5.3 is its impact severity (EG Severity), not escalated.

EG Severity
5.3 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track 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). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

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
GitHub advisoryMentions 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.

Patch Availability(2)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
npmnext @ 15.5.27 (fixes >= 15.0.0, < 15.5.27)—ghsa
npmnext @ 16.3.8 (fixes >= 16.0.0, < 16.3.8)—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

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 10× in last 7d / 48× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

  1. 2026-11-01 16:36 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  2. 2026-11-01 07:37 UTCGHSA enrichmentGHSA-4jqv-mc3x-m676 · GitHub severity MODERATE · GitHub CVSS 5.3
  3. 2026-11-01 07:37 UTCEG score recompute
  4. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  5. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  6. 2026-10-29 17:09 UTCEG score recompute
  7. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  8. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  9. 2026-10-27 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  10. 2026-10-26 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  11. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  12. 2026-10-25 13:49 UTCEG score recompute
  13. 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  14. 2026-10-23 16:33 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  15. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  16. 2026-10-22 12:26 UTCEG score recompute
  17. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  18. 2026-10-20 16:34 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  19. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  20. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  21. 2026-10-18 02:58 UTCEG score recompute
  22. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  23. 2026-10-16 16:45 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  24. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  25. 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.3% · 19th percentile
Show 26 more
  1. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  2. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  3. 2026-10-12 14:41 UTCEG score recompute
  4. 2026-10-11 19:11 UTCEG score recompute
  5. 2026-10-11 16:27 UTCEG score recompute
  6. 2026-10-11 13:50 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  7. 2026-10-11 13:40 UTCEG score recompute
  8. 2026-10-10 21:19 UTCEG score recompute
  9. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  10. 2026-10-09 20:26 UTCEG score recompute
  11. 2026-10-09 20:08 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  12. 2026-10-08 19:43 UTCEG score recompute
  13. 2026-10-08 17:14 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  14. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  15. 2026-10-06 16:37 UTCEG score recompute
  16. 2026-10-06 15:49 UTCEG score recompute
  17. 2026-10-06 15:19 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  18. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  19. 2026-10-05 15:07 UTCEG score recompute▼ 1.00
  20. 2026-10-05 15:04 UTCNVD updateCVSS v3 → 5.3
  21. 2026-10-04 23:23 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  22. 2026-10-03 18:57 UTCEG score recompute
  23. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  24. 2026-10-02 16:28 UTCEG score recompute
  25. 2026-10-02 15:31 UTCEG score recomputeFirst assessed: 6.3 MEDIUM
  26. 2026-10-02 15:30 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-94543?
CVE-2026-94543 is a medium-severity vulnerability; its CVE record was 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 the CVE record for CVE-2026-94543 published?
The CVE record for CVE-2026-94543 was published on October 2, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 6, 2026; the record at its source may have been updated since.
Is CVE-2026-94543 actively exploited?
CVE-2026-94543 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (43rd 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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