HTTP Request Smuggling The advisory has been revoked - it doesn't affect any version of package firefox (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-FIREFOX-17456885
- published25 Jun 2026
- disclosed3 Jul 2025
Introduced: 3 Jul 2025
CVE-2025-49826 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by RHEL.
Next.js is a React framework for building full-stack web applications. From versions 15.0.4-canary.51 to before 15.1.8, a cache poisoning bug leading to a Denial of Service (DoS) condition was found in Next.js. This issue does not impact customers hosted on Vercel. Under certain conditions, this issue may allow a HTTP 204 response to be cached for static pages, leading to the 204 response being served to all users attempting to access the page. This issue has been addressed in version 15.1.8.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2376220
- https://access.redhat.com/security/cve/CVE-2025-49826
- https://github.com/vercel/next.js/commit/a15b974ed707d63ad4da5b74c1441f5b7b120e93
- https://github.com/vercel/next.js/releases/tag/v15.1.8
- https://github.com/vercel/next.js/security/advisories/GHSA-67rr-84xm-4c7r
- https://vercel.com/changelog/cve-2025-49826