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CVE-2026-59173 | Mondoo Vulnerability Intelligence

Vulnerability IntelligenceCVE-2026-59173

CVE-2026-59173

HIGH7.5

Apache Traffic Server: DoS vulnerability in HTTP/2 via stalled flow-control conditions

Published Jul 18, 2026

Modified Yesterday

Details

Uncontrolled Resource Consumption vulnerability in Apache Traffic Server.

This issue affects Apache Traffic Server: from 9.0.0 through 9.1.13, from 10.0.0 through 10.1.2.

Users are recommended to upgrade to version 9.1.14 or 10.1.3, which fixes the issue.

References

http://www.openwall.com/lists/oss-security/2026/07/17/5

https://lists.apache.org/thread/lhlbhphmv5dsfgx1fx84mgonzbocpzhd

https://www.cve.org/CVERecord?id=CVE-2026-59173

CVSS Analysis

CVSS v3.1

7.5

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

NoneI:N

Availability

HighA:H

7.5/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

Resource Management

Resource Exhaustion

Ecosystems

Timeline

PublishedJul 18, 2026

ModifiedJul 20, 2026