CVE-2024-34350 json
Next.js Vulnerable to HTTP Request Smuggling
published 2024-05-09 2 y ago modified 2026-09-10 59 d ago also EUVD-2024-1482 , GHSA-77r5-gw3j-2mpf
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 68%
- public exploits
- 0
- none known
Summary
Next.js is a React framework that can provide building blocks to create web applications. Prior to 13.5.1, an inconsistent interpretation of a crafted HTTP request meant that requests are treated as both a single request, and two separate requests by Next.js, leading to desynchronized responses. This led to a response queue poisoning vulnerability in the affected Next.js versions. For a request to be exploitable, the affected route also had to be making use of the [rewrites](https://nextjs.org/docs/app/api-reference/next-config-js/rewrites) feature in Next.js. The vulnerability is resolved in Next.js `13.5.1` and newer.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
1.19% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | next | >=13.4.0, <13.5.1 |
13.5.1 |
Affected products
- vercel next.js
Classification
- Weakness
-
- CWE-444 Inconsistent Interpretation of HTTP Requests
- Technology feeds
References
-
github.com
/vercel/next.js/commit/44eba020c615f0d9efe431f84ada67b81576f3f5
web
-
github.com
/vercel/next.js/security/advisories/GHSA-77r5-gw3j-2mpf
web, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2024-34350
advisory
-
github.com
/vercel/next.js
package
-
github.com
/vercel/next.js/compare/v13.5.0...v13.5.1
web
Sources
- CVE List CVE-2024-34350
- GitHub Advisory GHSA-77r5-gw3j-2mpf
- NVD CVE-2024-34350
- Maintainer advisory GHSA-77r5-gw3j-2mpf
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
The maintainers of vercel/next.js published their own advisory on GitHub. Reviewed sources take precedence over it.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.