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GHSA-gp8f-8m3g-qvj9 CVE-2024-46982

Next.js Cache Poisoning

High npm
Severity
0.0 / 10
High · CVSS 4.0
Exploit chance (EPSS)
59.18%
Chance of exploitation in the next 30 days. Higher than 99.12% of scored vulnerabilities.
Known exploited
No
Not in CISA's catalog
Weakness
CWE-349 Acceptance of Extraneous Untrusted Data With Trusted Data
CWE-639 Authorization Bypass Through User-Controlled Key
Fix
13.5.7
Upgrade next to this version or later

Description

Impact

By sending a crafted HTTP request, it is possible to poison the cache of a non-dynamic server-side rendered route in the pages router (this does not affect the app router). When this crafted request is sent it could coerce Next.js to cache a route that is meant to not be cached and send a Cache-Control: s-maxage=1, stale-while-revalidate header which some upstream CDNs may cache as well.

To be potentially affected all of the following must apply:

  • Next.js between 13.5.1 and 14.2.9
  • Using pages router
  • Using non-dynamic server-side rendered routes e.g. pages/dashboard.tsx not pages/blog/[slug].tsx

The below configurations are unaffected:

  • Deployments using only app router
  • Deployments on Vercel are not affected

Patches

This vulnerability was resolved in Next.js v13.5.7, v14.2.10, and later. We recommend upgrading regardless of whether you can reproduce the issue or not.

Workarounds

There are no official or recommended workarounds for this issue, we recommend that users patch to a safe version.

Credits

  • Allam Rachid (zhero_)
  • Henry Chen

Affected versions

npm

PackageVulnerableFixed in
next
>= 13.5.1, < 13.5.7
13.5.7
next
>= 14.0.0, < 14.2.10
14.2.10

How to fix

Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.

next npm → 13.5.7

npm
npm install next@13.5.7
yarn
yarn add next@13.5.7
pnpm
pnpm add next@13.5.7

Severity breakdown

CVSS 4.0 0.0

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Attack vector
Network
Attack complexity
Low
Attack requirements
None
Privileges required
None
User interaction
None
Confidentiality (vulnerable system)
None
Integrity (vulnerable system)
None
Availability (vulnerable system)
High
Confidentiality (subsequent systems)
None
Integrity (subsequent systems)
None
Availability (subsequent systems)
None

CVSS 3.1 7.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Weakness

CWE-349: Acceptance of Extraneous Untrusted Data With Trusted Data

The product, when processing trusted data, accepts any untrusted data that is also included with the trusted data, treating the untrusted data as if it were trusted.

CWE-639: Authorization Bypass Through User-Controlled Key

The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

How to prevent it
  • Architecture and Design: For each and every data access, ensure that the user has sufficient privilege to access the record that is being requested.
  • Architecture and Design, Implementation: Make sure that the key that is used in the lookup of a specific user's record is not controllable externally by the user or that any tampering can be detected.
  • Architecture and Design: Use encryption in order to make it more difficult to guess other legitimate values of the key or associate a digital signature with the key so that the server can verify that there has been no tampering.

References

Timeline

  1. Published
  2. Last updated by the source
  3. Latest EPSS score
AdvisorySeverityWhy it's related
GHSA-673q-mjm6-r5xr
Next.js: Unauthenticated Remote Code Execution in `use cache` functions returning typed arrays
Critical Also affects next
GHSA-2464-fhr4-w9xw
Next.js: Unauthenticated Remote Code Execution in Image Optimization API when SVG files are used
Critical Also affects next
GHSA-p3m5-59mp-jv5r
Next.js: Denial of Service in App Router using Server Actions
High Also affects next
GHSA-3w37-wq28-93x7
Next.js: Pending `use cache` fill can leak Draft Mode content into regular responses and persisted pages
Medium Also affects next
GHSA-4jqv-mc3x-m676
Next.js has cache poisoning of SSG and ISR pages in self-hosted applications
Medium Also affects next
GHSA-39w2-rjm5-chcv
Next.js has information disclosure in development server's Model Context Protocol endpoint
Medium Also affects next
GHSA-f87g-xv8r-7p7x
Next.js has information disclosure in App Router metadata image routes via dynamicParams bypass
Medium Also affects next
GHSA-mcj8-r9mp-w47p
Next.js has cache poisoning in SSG/ISR rendering that leads to cross-user content substitution and persistent denial of service
Medium Also affects next
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