CVE-2026-58187

Summary

The Apache Traffic Server multiplexer plugin overruns its chunk-decode buffer on upstream input, enabling denial of service.

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.

Affected Software

VendorProductVersion RangeStatus
Apache Software FoundationApache Traffic Server8.0.0 <= 8.1.9affected
Apache Software FoundationApache Traffic Server9.0.0 <= 9.2.14affected
Apache Software FoundationApache Traffic Server10.0.0 <= 10.1.3affected

Weaknesses

  • CWE-787: CWE-787 Out-of-bounds Write

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References