Next.js is a React framework for building full-stack web applications. From 13.4.0 until 15.5.24 and 16.3.3, Next.js applications using Pages Router or App Router without Cache Components on Windows-hosted servers do not consistently escape backslashes in route segments before constructing incremental-cache paths. In packages/next/src/shared/lib/router/utils/escape-path-delimiters.ts and packages/next/src/server/lib/incremental-cache/file-system-cache.ts, a remote request can supply encoded Windows path separators that traverse outside the intended cache root and expose private build data, including the server-reference-manifest encryption key. Disclosure of that key can enable remote code execution in the affected application. This issue is fixed in versions 15.5.24 and 16.3.3.
CVE-2026-75604
“—” beside the score: it is equal to the CVSS score beside it.
Score 9.0 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-08. A secondary CVSS source baseline 9.0; sources differ by 0.0.
Also known asEUVD-2026-69702 (ENISA EUVD) · GHSA-p293-qw3h-jr36 (GitHub Security Advisories)Source: ENISA EUVD
- Public exploit code is available (Metasploit, other public proof-of-concept code)
A fix is available — apply it.
- CVSS v3
- 9.0
- EG Score
- 9.0CRITICALmedium confidence
- EG Risk
- 67EG Risk 67/100
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)Severity90% × 45%Impact severity (EG Severity): CVSS 9.0 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation65% × 40%EchelonGraph's fixed weight for EG-KEV Tier 2 (Weaponized): a constant, not a probability.Automatability0% × 15%CISA's SSVC Automatable value: no (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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. - EPSS PROB
- 2.1%
- EPSS %ILE
- 81st
- 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 (9.0): severity, escalated by confirmed exploitation. This CVE's 9.0 is its impact severity (EG Severity), not escalated.
- EG Severity
- 9.0 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
- EG Likelihood
- 2.1% 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; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade 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; Track* at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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; Fix on system upgrade if it is not.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (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
September 1, 2026
Last Modified
September 9, 2026
Advisory Details (5)
Auto-updated Sep 1, 2026v16.3.3
Patch available: vercel/next.js v16.3.3
https://github.com/vercel/next.js/releases/tag/v16.3.3v15.5.24
Patch available: vercel/next.js v15.5.24
https://github.com/vercel/next.js/releases/tag/v15.5.24commit b0f3460a92b9 (vercel/next.js)
Patch available: vercel/next.js v15.5.24 (contains commit b0f3460a92b9)
https://github.com/vercel/next.js/commit/b0f3460a92b955d3ca41fccff9a525a2b910fbf3commit 968b9fcb26bd (vercel/next.js)
Patch available: vercel/next.js v16.3.3 (contains commit 968b9fcb26bd)
https://github.com/vercel/next.js/commit/968b9fcb26bdeb8e0a861a9df05361474666d51bUnauthenticated Remote Code Execution on windows-hosted servers · Advisory · vercel/next.js · GitHub
https://github.com/vercel/next.js/security/advisories/GHSA-p293-qw3h-jr36Vendor Advisories for CVE-2026-75604(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 / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| npm | next @ 15.5.24 (fixes >= 13.4.0, < 15.5.24) | — | ghsa |
| npm | next @ 16.3.3 (fixes >= 16.0.0, < 16.3.3) | — | 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)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| next | — |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 13× in last 7d / 60× 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.
Showing the most recent 100 of 119 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 19 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-01 14:53 UTCGHSA enrichmentGHSA-p293-qw3h-jr36 · GitHub severity CRITICAL · GitHub CVSS 9.0
- 2026-11-01 07:39 UTCGHSA enrichmentGHSA-p293-qw3h-jr36 · GitHub severity CRITICAL · GitHub CVSS 9.0
- 2026-11-01 07:39 UTCEG score recompute
- 2026-10-31 16:33 UTCEPSS rescoreEPSS 2.1% · 81st percentile
- 2026-10-31 13:45 UTCEG score recompute
- 2026-10-30 16:35 UTCEPSS rescoreEPSS 2.1% · 81st percentile
- 2026-10-30 12:37 UTCEG score recompute
- 2026-10-29 16:34 UTCEPSS rescoreEPSS 2.1% · 81st percentile
- 2026-10-29 11:27 UTCEG score recompute
- 2026-10-28 16:33 UTCEPSS rescoreEPSS 2.1% · 81st percentile
- 2026-10-28 10:18 UTCEG score recompute
- 2026-10-27 16:32 UTCEPSS rescoreEPSS 2.1% · 81st percentile
- 2026-10-27 08:13 UTCEG score recompute
- 2026-10-26 04:48 UTCEG score recompute
- 2026-10-25 16:34 UTCEPSS rescoreEPSS 2.1% · 81st percentile
- 2026-10-25 14:02 UTCEG score recompute
- 2026-10-25 03:40 UTCEG score recompute
- 2026-10-24 16:33 UTCEPSS rescoreEPSS 2.1% · 81st percentile
- 2026-10-24 02:33 UTCEG score recompute
- 2026-10-23 16:32 UTCEPSS rescoreEPSS 2.1% · 81st percentile
- 2026-10-23 01:25 UTCEG score recompute
- 2026-10-22 16:35 UTCEPSS rescoreEPSS 2.1% · 81st percentile
- 2026-10-22 00:15 UTCEG score recompute
- 2026-10-21 16:33 UTCEPSS rescoreEPSS 2.1% · 81st percentile
- 2026-10-20 23:06 UTCEG score recompute
Show 75 moreShow fewer
- 2026-10-20 16:33 UTCEPSS rescoreEPSS 2.1% · 81st percentile
- 2026-10-19 21:58 UTCEG score recompute
- 2026-10-19 16:33 UTCEPSS rescoreEPSS 2.1% · 81st percentile
- 2026-10-18 20:47 UTCEG score recompute
- 2026-10-18 16:32 UTCEPSS rescoreEPSS 2.1% · 81st percentile
- 2026-10-18 03:13 UTCEG score recompute
- 2026-10-17 19:32 UTCEG score recompute
- 2026-10-17 16:35 UTCEPSS rescoreEPSS 2.1% · 81st percentile
- 2026-10-16 18:24 UTCEG score recompute
- 2026-10-16 16:44 UTCEPSS rescoreEPSS 2.1% · 81st percentile
- 2026-10-15 16:32 UTCEPSS rescoreEPSS 2.1% · 81st percentile
- 2026-10-15 14:53 UTCEG score recompute
- 2026-10-14 16:33 UTCEPSS rescoreEPSS 2.1% · 81st percentile
- 2026-10-14 09:21 UTCEG score recompute
- 2026-10-13 16:35 UTCEPSS rescoreEPSS 2.1% · 81st percentile
- 2026-10-13 06:45 UTCEG score recompute
- 2026-10-12 16:35 UTCEPSS rescoreEPSS 2.1% · 81st percentile
- 2026-10-12 15:39 UTCEG score recompute
- 2026-10-11 19:24 UTCEG score recompute
- 2026-10-11 16:40 UTCEG score recompute
- 2026-10-11 13:59 UTCEG score recompute
- 2026-10-11 13:49 UTCEPSS rescoreEPSS 2.1% · 81st percentile
- 2026-10-10 20:00 UTCEPSS rescoreEPSS 2.1% · 81st percentile
- 2026-10-10 00:01 UTCEG score recompute
- 2026-10-09 20:07 UTCEPSS rescoreEPSS 2.3% · 82nd percentile
- 2026-10-09 01:50 UTCEG score recompute
- 2026-10-08 17:13 UTCEPSS rescoreEPSS 2.3% · 82nd percentile
- 2026-10-08 00:02 UTCEG score recompute
- 2026-10-07 23:48 UTCEPSS rescoreEPSS 2.3% · 82nd percentile
- 2026-10-06 16:57 UTCEG score recompute
- 2026-10-06 15:18 UTCEPSS rescoreEPSS 2.3% · 82nd percentile
- 2026-10-05 18:19 UTCEG score recompute
- 2026-10-05 17:43 UTCEPSS rescoreEPSS 2.3% · 82nd percentile
- 2026-10-03 17:15 UTCEG score recompute
- 2026-10-03 14:26 UTCEPSS rescoreEPSS 2.3% · 82nd percentile
- 2026-10-02 18:01 UTCEG score recompute
- 2026-10-02 00:33 UTCEG score recompute
- 2026-10-01 19:50 UTCEPSS rescoreEPSS 2.3% · 82nd percentile
- 2026-09-30 19:28 UTCEG score recompute
- 2026-09-30 03:13 UTCEG score recompute
- 2026-09-29 15:24 UTCEPSS rescoreEPSS 2.3% · 82nd percentile
- 2026-09-29 00:55 UTCEG score recompute
- 2026-09-28 14:14 UTCEG score recompute
- 2026-09-28 13:52 UTCEPSS rescoreEPSS 2.3% · 82nd percentile
- 2026-09-27 14:20 UTCEG score recompute
- 2026-09-27 13:48 UTCEPSS rescoreEPSS 2.3% · 82nd percentile
- 2026-09-26 17:29 UTCEG score recompute
- 2026-09-26 15:59 UTCEPSS rescoreEPSS 2.3% · 82nd percentile
- 2026-09-26 05:09 UTCEG score recompute
- 2026-09-26 00:28 UTCEPSS rescoreEPSS 2.3% · 82nd percentile
- 2026-09-24 14:26 UTCEG score recompute
- 2026-09-24 14:04 UTCEPSS rescoreEPSS 2.3% · 82nd percentile
- 2026-09-23 18:04 UTCEG score recompute
- 2026-09-23 17:54 UTCEPSS rescoreEPSS 2.5% · 83rd percentile
- 2026-09-22 18:05 UTCEG score recompute
- 2026-09-22 16:01 UTCEPSS rescoreEPSS 2.5% · 83rd percentile
- 2026-09-21 22:03 UTCEG score recompute
- 2026-09-21 21:09 UTCEPSS rescoreEPSS 2.5% · 83rd percentile
- 2026-09-19 18:13 UTCEG score recompute
- 2026-09-18 21:24 UTCEG score recompute
- 2026-09-18 19:28 UTCEPSS rescoreEPSS 2.5% · 83rd percentile
- 2026-09-17 20:40 UTCEG score recompute
- 2026-09-16 18:38 UTCEG score recompute
- 2026-09-16 14:08 UTCEPSS rescoreEPSS 2.5% · 83rd percentile
- 2026-09-16 09:10 UTCEG score recompute
- 2026-09-16 05:15 UTCEPSS rescoreEPSS 2.5% · 83rd percentile
- 2026-09-15 05:16 UTCEG score recompute
- 2026-09-15 03:12 UTCEPSS rescoreEPSS 2.5% · 83rd percentile
- 2026-09-13 17:19 UTCEG score recompute
- 2026-09-12 17:23 UTCEG score recompute
- 2026-09-12 15:02 UTCEPSS rescoreEPSS 2.5% · 83rd percentile
- 2026-09-11 17:26 UTCEG score recompute
- 2026-09-11 14:53 UTCEPSS rescoreEPSS 2.5% · 83rd percentile
- 2026-09-11 13:06 UTCEG score recompute
- 2026-09-10 13:09 UTCEG score recompute
Publicly available exploits
(5 references)Public exploit code is referenced for this CVE (1 Metasploit module, 4 GitHub PoCs). Defenders should treat patch urgency accordingly.
- Metasploitexploit/windows/http/nextjs_unauth_rce_cve_2026_75604✓ verifiedPublished Sep 9, 2026
Next.js Unauthenticated RCE on Windows Servers
Open source ↗ - Open source ↗GitHub PoCZeroDayEvil/CVE-2026-75604-PoCPublished Sep 28, 2026
- GitHub PoCe4zyy/Project-CVE-2026-75604Published Aug 27, 2026
A Python-based exploitation framework for CVE-2026-75604 that enables authorized penetration testers to validate Next.js Windows cache traversal vulnerabilities. Deploys reverse shells and webshells via path traversal, with built-in target verification and proxy support for seamless integration into standard pentest workflows.
Open source ↗ - GitHub PoCHackSpeak/CVE-2026-75604Published Aug 26, 2026
CVE-2026-75604 (Next.js Windows RCE) PoC - unauthenticated RCE via cache path traversal + forged Server Action; for authorized security testing
Open source ↗ - GitHub PoCrafabd1/CVE-2026-75604-pocPublished Aug 25, 2026
CVE-2026-75604 Next.js Windows RCE poc
Open source ↗
Related CVEs(same product + same CWE)
Same product
10 shownnpm:next
Frequently asked(5)
What is CVE-2026-75604?
When was the CVE record for CVE-2026-75604 published?
Is CVE-2026-75604 actively exploited?
What is the CVSS score of CVE-2026-75604?
How do I remediate CVE-2026-75604?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-75604
Is Your Infrastructure Affected by CVE-2026-75604?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.