CVE-2026-58155

CriticalCVSS 9.3

Published: 29/07/2026(UTC)Updated: 30/07/2026(UTC)Translated: 29/07/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.26%

18th percentile - higher than 18% of all known CVEs

Summary

Apache Traffic Server truncates over-long header names, allowing header aliasing, request smuggling, and policy bypass. Affects versions 8.0.0-8.1.9, 9.0.0-9.2.14, 10.0.0-10.1.3.

Risk Assessment

An attacker can manipulate HTTP headers, leading to traffic integrity violations and security bypass.

Recommendation

Upgrade to version 9.2.15 or 10.1.4 which fix the issue.

Original NVD description (English source)

Apache Traffic Server truncates over-long header names, allowing header aliasing, request smuggling, and policy bypass. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.