CVE-2026-58157

HIGH CVSS 4.0: 6.9 EPSS 0.45%
Updated Aug 03, 2026
Apache
Parameter Value
CVSS 6.9 (HIGH)
Affected Versions 10.0.0 — 9.2.15
Fixed In 9.2.15
Type CWE-200 (Information Exposure)
Vendor Apache
Public PoC No

Apache Traffic Server can reuse server sessions and tunnels improperly, exposing data across client connections. 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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v4.0

Weakness Type (CWE)

Vulnerable Products 3

Configuration From (including) Up to (excluding)
Apache Traffic_Server
cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*
8.0.0 <= 8.1.9
Apache Traffic_Server
cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*
9.0.0 9.2.15
Apache Traffic_Server
cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*
10.0.0 10.1.4