CVE-2026-11751

Armeria xDS Allows Man‑In‑The‑Middle via Silent TLS Peer Verification Disablement

Published Aug 19, 2026 CVSS 4.0 · 9.1 Critical EPSS < 1% KEV · Not listed
Description
A vulnerability has been identified in armeria-xds versions prior to 1.41.0, where xDS upstream TLS peer verification may be silently disabled, allowing man-in-the-middle attacks against xDS-managed upstream connections.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Ly Corporation
Ly Corporation armeria
Vendors & Products Ly Corporation
Ly Corporation armeria
Type Values Removed Values Added
Title Armeria xDS Allows Man‑In‑The‑Middle via Silent TLS Peer Verification Disablement
Weaknesses CWE-297
Type Values Removed Values Added
Description A vulnerability has been identified in armeria-xds versions prior to 1.41.0, where xDS upstream TLS peer verification may be silently disabled, allowing man-in-the-middle attacks against xDS-managed upstream connections.
References
Metrics cvssV4_0

{'score': 9.1, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
LY-Corporation
Published
Updated
Aug 20, 2026, 3:36 PM
Reserved
Jun 9, 2026, 6:50 AM
Status
Deferred
Published
Aug 19, 2026, 2:16 AM
Modified
Oct 22, 2026, 4:09 PM