vercel next.js prior 16.1.5 PPR Resume Endpoint Buffer.concat denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in vercel next.js. The affected element is the function Buffer.concat of the component PPR Resume Endpoint. Executing a manipulation can lead to denial of service. This vulnerability appears as CVE-2025-59472. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in vercel next.js. It has been declared as problematic. This vulnerability affects the function Buffer.concat of the component PPR Resume Endpoint. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

A denial of service vulnerability exists in Next.js versions with Partial Prerendering (PPR) enabled when running in minimal mode. The PPR resume endpoint accepts unauthenticated POST requests with the `Next-Resume: 1` header and processes attacker-controlled postponed state data. Two closely related vulnerabilities allow an attacker to crash the server process through memory exhaustion: 1. **Unbounded request body buffering**: The server buffers the entire POST request body into memory using `Buffer.concat()` without enforcing any size limit, allowing arbitrarily large payloads to exhaust available memory. 2. **Unbounded decompression (zipbomb)**: The resume data cache is decompressed using `inflateSync()` without limiting the decompressed output size. A small compressed payload can expand to hundreds of megabytes or gigabytes, causing memory exhaustion. Both attack vectors result in a fatal V8 out-of-memory error (`FATAL ERROR: Reached heap limit Allocation failed - JavaScript heap out of memory`) causing the Node.js process to terminate. The zipbomb variant is particularly dangerous as it can bypass reverse proxy request size limits while still causing large memory allocation on the server. To be affected you must have an application running with `experimental.ppr: true` or `cacheComponents: true` configured along with the NEXT_PRIVATE_MINIMAL_MODE=1 environment variable. Strongly consider upgrading to 15.6.0-canary.61 or 16.1.5 to reduce risk and prevent availability issues in Next applications.

The advisory is available at github.com. This vulnerability was named CVE-2025-59472 since 09/16/2025. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 297048 (Linux Distros Unpatched Vulnerability : CVE-2025-59472), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 15.0.0, 15.0.1, 15.0.2, 15.0.3, 15.0.4, 15.0.5, 15.0.6, 15.0.7, 15.1.0, 15.1.1, 15.1.2, 15.1.3, 15.1.4, 15.1.5, 15.1.6, 15.1.7, 15.1.8, 15.1.9, 15.1.10, 15.1.11, 15.2.0, 15.2.1, 15.2.2, 15.2.3, 15.2.4, 15.2.5, 15.2.6, 15.2.7, 15.2.8, 15.3.0, 15.3.1, 15.3.2, 15.3.3, 15.3.4, 15.3.5, 15.3.6, 15.3.7, 15.3.8, 15.4.0, 15.4.1, 15.4.2, 15.4.3, 15.4.4, 15.4.5, 15.4.6, 15.4.7, 15.4.8, 15.4.9, 15.4.10, 15.5.0, 15.5.1, 15.5.2, 15.5.3, 15.5.4, 15.5.5, 15.5.6, 15.5.7, 15.5.8, 15.5.9 or 16.1.5 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (297048) and EUVD (EUVD-2025-206333). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.7

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CNA Base Score: 5.9
CNA Vector (hackerone): 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 297048
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-59472

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: next.js 15.0.0/15.0.1/15.0.2/15.0.3/15.0.4/15.0.5/15.0.6/15.0.7/15.1.0/15.1.1/15.1.2/15.1.3/15.1.4/15.1.5/15.1.6/15.1.7/15.1.8/15.1.9/15.1.10/15.1.11/15.2.0/15.2.1/15.2.2/15.2.3/15.2.4/15.2.5/15.2.6/15.2.7/15.2.8/15.3.0/15.3.1/15.3.2/15.3.3/15.3.4/15.3.5/15.3.6/15.3.7/15.3.8/15.4.0/15.4.1/15.4.2/15.4.3/15.4.4/15.4.5/15.4.6/15.4.7/15.4.8/15.4.9/15.4.10/15.5.0/15.5.1/15.5.2/15.5.3/15.5.4/15.5.5/15.5.6/15.5.7/15.5.8/15.5.9/16.1.5

Timelineinfo

09/16/2025 CVE reserved
01/27/2026 +133 days Advisory disclosed
01/27/2026 +0 days VulDB entry created
02/26/2026 +30 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-5f7q-jpqc-wp7h
Status: Confirmed

CVE: CVE-2025-59472 (🔒)
GCVE (CVE): GCVE-0-2025-59472
GCVE (VulDB): GCVE-100-342898
EUVD: 🔒

Entryinfo

Created: 01/27/2026 02:02
Updated: 02/26/2026 11:28
Changes: 01/27/2026 02:02 (66), 01/27/2026 12:24 (1), 01/29/2026 14:03 (2), 02/26/2026 11:28 (11)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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