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CVE-2026-45659 Microsoft SharePoint Server Deserialization of Untrusted Data Vulnerability →
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CVE-2026-54399NVD

Vulnerability Summary

Uncontrolled Resource Consumption vulnerability in the HTTP/1.1 message parser in Apache HttpComponents Core (5.4.2 and earlier, 5.5-beta1 and earlier) allows an remote attacker to cause a denial of service through memory exhaustion by sending messages with excessive number of headers / excessive header length
Severity Level
HIGH(7.5)
Published Date
Jul 1, 2026
Last Modified
Jul 1, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.41%Probability
Root Weakness (CWE)
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CVSS v3.1 Base Metrics
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh