vercel next.js up to 14.2.30/15.4.4 Image Optimization API cache containing sensitive information

Summaryinfo

A vulnerability classified as problematic was found in vercel next.js up to 14.2.30/15.4.4. This affects an unknown function of the component Image Optimization API. Executing a manipulation can lead to use of cache containing sensitive information. This vulnerability is registered as CVE-2025-57752. The attack needs to be launched locally. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in vercel next.js up to 14.2.30/15.4.4. It has been declared as problematic. This vulnerability affects an unknown function of the component Image Optimization API. The manipulation with an unknown input leads to a use of cache containing sensitive information vulnerability. The CWE definition for the vulnerability is CWE-524. The code uses a cache that contains sensitive information, but the cache can be read by an actor outside of the intended control sphere. As an impact it is known to affect confidentiality. CVE summarizes:

Next.js is a React framework for building full-stack web applications. In versions before 14.2.31 and from 15.0.0 to before 15.4.5, Next.js Image Optimization API routes are affected by cache key confusion. When images returned from API routes vary based on request headers (such as Cookie or Authorization), these responses could be incorrectly cached and served to unauthorized users due to a cache key confusion bug. This vulnerability has been fixed in Next.js versions 14.2.31 and 15.4.5. All users are encouraged to upgrade if they use API routes to serve images that depend on request headers and have image optimization enabled.

The advisory is shared for download at github.com. This vulnerability was named CVE-2025-57752 since 08/19/2025. The exploitation appears to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

The vulnerability scanner Nessus provides a plugin with the ID 261410 (Linux Distros Unpatched Vulnerability : CVE-2025-57752), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 14.2.31 or 15.4.5 eliminates this vulnerability. The upgrade is hosted for download at vercel.com. Applying the patch 6b12c60c61ee80cb0443ccd20de82ca9b4422ddd is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (261410). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• JavaScript Library

Vendor

• vercel

Name

• next.js

Version

• 14.2.0
• 14.2.1
• 14.2.2
• 14.2.3
• 14.2.4
• 14.2.5
• 14.2.6
• 14.2.7
• 14.2.8
• 14.2.9
• 14.2.10
• 14.2.11
• 14.2.12
• 14.2.13
• 14.2.14
• 14.2.15
• 14.2.16
• 14.2.17
• 14.2.18
• 14.2.19
• 14.2.20
• 14.2.21
• 14.2.22
• 14.2.23
• 14.2.24
• 14.2.25
• 14.2.26
• 14.2.27
• 14.2.28
• 14.2.29
• 14.2.30
• 15.4.0
• 15.4.1
• 15.4.2
• 15.4.3
• 15.4.4

License

• open-source

Website

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

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion