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Critical severity10.0NVD Advisory· Published Jul 29, 2026· Updated Aug 3, 2026

CVE-2026-58150

CVE-2026-58150

Description

Apache Traffic Server does not reject Transfer-Encoding in HTTP/2 requests, allowing downgrade request smuggling.

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/trafficserverllm-fuzzy2 versions
    from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3+ 1 more
    • (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
    • cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*range: >=8.0.0,<=8.1.9

Patches

Vulnerability mechanics

References

1

News mentions

1