CVE-2026-58153
Apache Traffic Server: HTTP/2 to HTTP/1 conversion forwards origin trailers to clients unsafely
CVSS Score
8.3
EPSS Score
0.0%
EPSS Percentile
0th
Apache Traffic Server forwards HTTP/2 origin trailers to HTTP/1 clients without proper chunked framing when converting HTTP/2 to HTTP/1. This issue affects Apache Traffic Server: 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 |
| Vendor | apache software foundation |
| Product | apache traffic server |
| Published | Jul 29, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low
Affected Versions
Apache Software Foundation / Apache Traffic Server
10.0.0 ≤ 10.1.3
References
Credits
🔍 Apache Community 🔍 Omkhar Arasaratnam