CVE-2025-47908
Last modified
CVE-2025-47908 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Middleware causes a prohibitive amount of heap allocations when processing malicious preflight requests that include a Access-Control-Request-Headers (ACRH) header whose value contains many commas. This behavior can be abused by attackers to produce undue load on the middleware/server as an attempt to cause a denial of service.. EPSS estimates a 0.53% chance of exploitation in the next 30 days.
Description
Middleware causes a prohibitive amount of heap allocations when processing malicious preflight requests that include a Access-Control-Request-Headers (ACRH) header whose value contains many commas. This behavior can be abused by attackers to produce undue load on the middleware/server as an attempt to cause a denial of service.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2025-47908?
How severe is CVE-2025-47908?
How do I fix CVE-2025-47908?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2025
- CVE-2025-47901Improper Neutralization of Special Elements used in an OS Co…8.8
- CVE-2025-47902Improper Neutralization of Special Elements used in an SQL C…8.8
- CVE-2025-47904Download of Code Without Integrity Check vulnerability in Mi…4.1
- CVE-2025-47905Varnish Cache before 7.6.3 and 7.7 before 7.7.1, and Varnish…5.4
- CVE-2025-47906If the PATH environment variable contains paths which are ex…6.5
- CVE-2025-47907Cancelling a query (e.g. by cancelling the context passed to…7
- CVE-2025-47909Hosts listed in TrustedOrigins implicitly allow requests fro…7.3
- CVE-2025-4791A vulnerability has been found in FreeFloat FTP Server 1.0 a…9.8
- CVE-2025-47910When using http.CrossOriginProtection, the AddInsecureBypass…5.4
- CVE-2025-47911The html.Parse function in golang.org/x/net/html has quadrat…5.3
- CVE-2025-47912The Parse function permits values other than IPv6 addresses …5.3
- CVE-2025-47913SSH clients receiving SSH_AGENT_SUCCESS when expecting a typ…7.5
Are you affected by CVE-2025-47908?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST