CVE-2026-58150

critical Apache
CVSS v3 Base Score
10.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
EPSS Score
0.2%
Exploitation probability in 30 days
Top 84% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
High
Availability
None
Published: July 29, 2026 (39 days ago)
Last Modified: August 3, 2026
Vendor: Apache
Source: NVD

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.

CWE

CWE-444

Affected Products

apache traffic server

References

🔗 lists.apache.org