CVE-2022-21721

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2022-21721
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-21721.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2022-21721
Aliases
Published
2022-01-28T22:00:17Z
Modified
2026-03-14T11:26:54.271637Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
DOS Vulnerability in next.js
Details

Next.js is a React framework. Starting with version 12.0.0 and prior to version 12.0.9, vulnerable code could allow a bad actor to trigger a denial of service attack for anyone using i18n functionality. In order to be affected by this CVE, one must use next start or a custom server and the built-in i18n support. Deployments on Vercel, along with similar environments where invalid requests are filtered before reaching Next.js, are not affected. A patch has been released, next@12.0.9, that mitigates this issue. As a workaround, one may ensure /${locale}/_next/ is blocked from reaching the Next.js instance until it becomes feasible to upgrade.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/21xxx/CVE-2022-21721.json"
}
References

Affected packages

Git / github.com/vercel/next.js

Affected ranges

Type
GIT
Repo
https://github.com/vercel/next.js
Events
Introduced
8a450db14a1b29d506ec86df1a002bc525ab0da7
Fixed
07431d3e0f057a0bd58af6d456e4bee646fd8b42
Database specific 
{
    "versions": [
        {
            "introduced": "12.0.0"
        },
        {
            "fixed": "12.0.9"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-21721.json"