TI-2024-37293 Aliases CVE-2024-56332 GHSA-7m27-7ghc-44w9

Next.js Vulnerable to Denial of Service (DoS) with Server Actions

LOW 25CWE-770Published 2025-01-03 · Updated 2025-01-03

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · Low
Fix status: Partial Red Hat: 1 fixed, 4 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-770.

Summary

Next.js is a React framework for building full-stack web applications. Starting in version 13.0.0 and prior to versions 13.5.8, 14.2.21, and 15.1.2, Next.js is vulnerable to a Denial of Service (DoS) attack that allows attackers to construct requests that leaves requests to Server Actions hanging until the hosting provider cancels the function execution. This vulnerability can also be used as a Denial of Wallet (DoW) attack when deployed in providers billing by response times. (Note: Next.js server is idle during that time and only keeps the connection open. CPU and memory footprint are low during that time.). Deployments without any protection against long running Server Action invocations are especially vulnerable. Hosting providers like Vercel or Netlify set a default maximum duration on function execution to reduce the risk of excessive billing. This is the same issue as if the incoming HTTP request has an invalid `Content-Length` header or never closes. If the host has no other mitigations to those then this vulnerability is novel. This vulnerability affects only Next.js deployments using Server Actions. The issue was resolved in Next.js 13.5.8, 14.2.21, and 15.1.2. We recommend that users upgrade to a safe version. There are no official workarounds.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00802 56th percentileScored 2026-11-07

Fix Partial next.js (vercel): 13.5.8, 14.2.21, 15.1.2next (npm): 13.5.8, 14.2.21, 15.1.2Red Hat: 1 advisoryRed Hat: 1 fixed, 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
vercel	next.js	13.0.0 to before 13.5.8; 14.0.0 to before 14.2.21; 15.0.0 to before 15.1.2	13.5.8, 14.2.21, 15.1.2	Patch available	CNA
—	next (npm)	13.0.0 to before 13.5.8	13.5.8	Patch available	GHSA-7m27-7ghc-44w9
—	next (npm)	14.0.0 to before 14.2.21	14.2.21	Patch available	GHSA-7m27-7ghc-44w9
—	next (npm)	15.0.0 to before 15.1.2	15.1.2	Patch available	GHSA-7m27-7ghc-44w9

next.js Vendorvercel Affected 13.0.0 to before 13.5.8; 14.0.0 to before 14.2.21; 15.0.0 to before 15.1.2 Fixed in 13.5.8, 14.2.21, 15.1.2 Patch available CNA
next (npm) Vendor— Affected 13.0.0 to before 13.5.8 Fixed in 13.5.8 Patch available GHSA-7m27-7ghc-44w9
next (npm) Vendor— Affected 14.0.0 to before 14.2.21 Fixed in 14.2.21 Patch available GHSA-7m27-7ghc-44w9
next (npm) Vendor— Affected 15.0.0 to before 15.1.2 Fixed in 15.1.2 Patch available GHSA-7m27-7ghc-44w9

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:vercel:next.js::::::node.js::*	13.0.0 to before 13.5.8; 14.0.0 to before 14.2.21; 15.0.0 to before 15.1.2	Vulnerable	vercel

cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:* Versions 13.0.0 to before 13.5.8; 14.0.0 to before 14.2.21; 15.0.0 to before 15.1.2 Vulnerable ·vercel

Remediation

Fix · CNA next.js (vercel) Fixed in 13.5.8, 14.2.21, 15.1.2
Fix · GHSA-7m27-7ghc-44w9 next (npm) Fixed in 13.5.8 Advisory →
Fix · GHSA-7m27-7ghc-44w9 next (npm) Fixed in 14.2.21 Advisory →
Fix · GHSA-7m27-7ghc-44w9 next (npm) Fixed in 15.1.2 Advisory →

Red Hat 1 advisory

RHSA-2025:3807 Released 2025-04-10 · Red Hat rating Moderate
RHTAS 1.1.2 - Red Hat Trusted Artifact Signer Release
- Red Hat Trusted Artifact Signer 1.1 registry.redhat.io/rhtas/rekor-search-ui-rhel9

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux 7	Affected	No fix planned: Out of support scope
Red Hat Enterprise Linux 8	Affected	No fix planned: Out of support scope
Red Hat Enterprise Linux 9	Affected	No fix planned: Out of support scope
streams for Apache Kafka	Affected	No fix yet
Red Hat Trusted Artifact Signer 1.1	Fixed	RHSA-2025:3807

Not affected: 1 product

Red Hat Enterprise Linux 9

Timeline

2026-10-02 Threatist record created from CVE-2024-56332
2026-10-03 Alias added: GHSA-7m27-7ghc-44w9

References

Advisory 2

Other 1

https://github.com/vercel/next.js

TI-2025-34861 Deserialization of untrusted data in Meta react-server-dom-webpack KEVCVSS 3.1CRITICAL 10.0
TI-2025-21309 Authorization Bypass in Next.js Middleware CVSS 3.1CRITICAL 9.1
TI-2025-34863 Deserialization of untrusted data in Meta react-server-dom-webpack CVSS 3.1HIGH 7.5
TI-2024-31371 Cache Poisoning in next.js CVSS 3.1HIGH 7.5
TI-2023-24914 Next.js before 13.4.20-canary.13 lacks a cache-control header and thus empty prefetch… CVSS 3.1HIGH 7.5
TI-2026-32490 Next.js: Server-side request forgery in applications using WebSocket upgrades CVSS 3.1HIGH 8.6

See all 62 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences