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Critical severity9.3NVD Advisory· Published Jul 29, 2026· Updated Aug 3, 2026

CVE-2026-58155

CVE-2026-58155

Description

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.

Affected products

2
  • Apache/trafficserver2 versions
    cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*range: >=8.0.0,<=8.1.9
    • (no CPE)range: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3

Patches

Vulnerability mechanics

References

1

News mentions

1