Critical [CVE-2026-58162] Apache Traffic Server: Certifier plugin trusts client SNI when generating certificates
This critical-severity Apache Software Foundation advisory covers CVE-2026-58162 affecting Apache Traffic Server.
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Summary
The Apache Traffic Server certifier plugin generates certificates based on attacker-controlled client SNI.
This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, 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.
- Apache Traffic Server 8.0.0 through 8.1.11
- Apache Traffic Server 9.0.0 through 9.2.14
- Apache Traffic Server 10.0.0 through 10.1.3
Official advisory · high-confidence parse· fetched 3 months ago·verify at source
- 9.2.15
- 10.1.4
Official advisory · high-confidence parse· fetched 3 months ago·verify at source
Mitigation checklist
- Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.
Official advisory · high-confidence parse· fetched 3 months ago·verify at source
More Apache Software Foundation advisories
- CVE-2026-112381Oct 21, 2026Apache Traffic Server can crash with a null pointer dereference when a client POST request
- CVE-2026-111817Oct 21, 2026Apache Traffic Server can stall a chunked transfer that it passes through with its
- CVE-2026-111812Oct 21, 2026Apache Traffic Server's origin_server_auth plugin lets a client force signing
- CVE-2026-111811Oct 21, 2026Apache Traffic Server's experimental tsmemcache plugin allows unauthenticated network
- CVE-2026-111809Oct 21, 2026Apache Traffic Server allows request smuggling via HEAD requests that carry Content-Length
- CVE-2026-111810Oct 21, 2026Apache Traffic Server 9.2.15, 10.1.4 and 10.2.0 write one unthrottled diagnostic log line
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