Paper/Archive/CVE-2026-41920

CVE-2026-41920

Apache Software Foundation Apache Traffic Server — Apache Traffic Server: SNI to Host header matching policy is not properly enforced

EPSS 0.5%CVSS 9.3

critical.is priorityof 100

CVSS 9.3 (CNA)9.3 / 10 × 3027.9 Not in CISA KEV+300.0 EPSS percentile 45.0.450 × 209.0 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

Improper Access Control vulnerability in Apache Traffic Server. This issue affects Apache Traffic Server: from 9.0.0 through 9.1.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.1.15 or 10.1.4, which fixes the issue.

Affected

ProductAffectedFixed inSource

Apache Traffic Server9.0.0 – 9.1.14–CNA

Apache Traffic Server10.0.0 – 10.1.3–CNA

Scores by source

apache (CNA)9.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N

apache (CNA)7.0CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

advisorylists.apache.org/thread/5prl9glcm9g2swnq9hqxvnokylm1gr6d