CVE-2026-94544
CVE-2026-94544 is a medium-severity vulnerability in Vercel Next.js with a CVSS 3.x base score of 4.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-524.
Key facts
- Severity: Medium (CVSS 3.x base score 4.2)
- CVSS v4: 6.3
- EPSS exploit prediction: 0% (7th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-524
- Affected product: Vercel Next.js
- Published:
- Last modified:
Description
Next.js is a React framework for building full-stack web applications. From 16.3.0 until 16.3.8, pending use cache fills for the same key are shared without separating Draft Mode requests from regular requests. An overlapping regular request can receive unauthenticated unpublished content from an editor's Draft Mode fill, while an overlapping Draft Mode request can receive published content from a regular fill. When the regular request prerenders a page, the draft-dependent content can persist in the generated page and be served to later visitors until revalidation. Sites are affected when Cache Components or experimental.useCache is enabled and cached functions return draft-dependent content. This issue is fixed in version 16.3.8.
Frequently asked questions
- What is CVE-2026-94544?
- Next.js is a React framework for building full-stack web applications. From 16.3.0 until 16.3.8, pending use cache fills for the same key are shared without separating Draft Mode requests from regular requests. An overlapping regular request can receive unauthenticated unpublished content from an editor's Draft Mode fill, while an overlapping Draft Mode request can receive published content from a regular fill. When the regular request prerenders a page, the draft-dependent content can persist in the generated page and be served to later visitors until revalidation. Sites are affected when Cache Components or experimental.useCache is enabled and cached functions return draft-dependent content. This issue is fixed in version 16.3.8.
- How severe is CVE-2026-94544?
- CVE-2026-94544 has a CVSS 3.x base score of 4.2, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2026-94544 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-94544?
- CVE-2026-94544 affects Vercel Next.js. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-94544?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2026-94544 published?
- CVE-2026-94544 was published on 2026-10-02 and last updated on 2026-10-05.
References
- https://github.com/vercel/next.js/commit/bd9214f9a32854a011bf5fe58e481dffe1bbf598
- https://github.com/vercel/next.js/releases/tag/v16.3.8
- https://github.com/vercel/next.js/security/advisories/GHSA-3w37-wq28-93x7
Affected products (1)
- cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:*
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