Vulnerability Details CVE-2026-58153
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 14.1%
CVSS Severity
CVSS v3 Score 8.3
Products affected by CVE-2026-58153
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cpe:2.3:a:apache:traffic_server:10.0.0
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cpe:2.3:a:apache:traffic_server:10.0.1
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cpe:2.3:a:apache:traffic_server:10.0.2
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cpe:2.3:a:apache:traffic_server:10.0.3
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cpe:2.3:a:apache:traffic_server:10.0.4
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cpe:2.3:a:apache:traffic_server:10.0.5
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cpe:2.3:a:apache:traffic_server:10.0.6
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cpe:2.3:a:apache:traffic_server:10.1.0
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cpe:2.3:a:apache:traffic_server:10.1.1
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cpe:2.3:a:apache:traffic_server:10.1.2
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cpe:2.3:a:apache:traffic_server:10.1.3