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CVE-2026-90990: Improper Neutralization of CRLF Sequences

🗓️ 22 Sep 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com👁 1 Views

Authenticated CRLF injection in Checkmk <2.5.0p14 APIs allows info disclosure and DoS.

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22 Sep 2026 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 45.3
EPSS0.00421
SSVC
1