HTTP/2 Framing Vulnerability in Apache Traffic Server by Apache
CVE-2026-58151

8.7HIGH

Key Information:

Vendor

Apache
Status
Apache Traffic Server
Vendor
CVE Published:
29 July 2026

What is CVE-2026-58151?

Apache Traffic Server is vulnerable to a resource exhaustion issue caused by maliciously constructed HTTP/2 framing and flow control. This flaw enables attackers to intentionally crash the server or deplete its resources, leading to service disruption. Users are advised to upgrade to version 9.2.15 or 10.1.4, which contain fixes for this vulnerability.

Affected Version(s)

Apache Traffic Server 8.0.0 <= 8.1.9

Apache Traffic Server 9.0.0 <= 9.2.14

Apache Traffic Server 10.0.0 <= 10.1.3

References

https://lists.apache.org/thread/5prl9glcm9g2swnq9hqxvnoky...
vendor-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Apache Community
Omkhar Arasaratnam
.