CVE-2026-11751: CWE-295 in LY Corporation Armeria
CVE-2026-11751 is a critical vulnerability in LY Corporation's Armeria, specifically in armeria-xds versions prior to 1.41.0. The flaw allows silent disabling of TLS peer verification for xDS upstream connections, which can enable man-in-the-middle attacks. This vulnerability is related to improper certificate validation (CWE-295).
AI Analysis
Technical Summary
This vulnerability affects armeria-xds versions before 1.41.0, where the TLS peer verification for xDS upstream connections may be silently disabled. This failure in verifying TLS peers properly can allow attackers to perform man-in-the-middle attacks against xDS-managed upstream connections. The issue is categorized under CWE-295, indicating improper certificate validation. The CVSS 4.0 score is 9.1, reflecting a critical severity with network attack vector, high attack complexity, and partial attack prerequisites.
Potential Impact
If exploited, this vulnerability could allow attackers to intercept and manipulate traffic between the affected Armeria service and its upstream xDS servers by bypassing TLS peer verification. This undermines the confidentiality and integrity of the communication channel, potentially leading to data exposure or injection of malicious data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch information is provided at this time. Users should monitor LY Corporation's advisories for updates and apply any forthcoming patches promptly.
CVE-2026-11751: CWE-295 in LY Corporation Armeria
Description
CVE-2026-11751 is a critical vulnerability in LY Corporation's Armeria, specifically in armeria-xds versions prior to 1.41.0. The flaw allows silent disabling of TLS peer verification for xDS upstream connections, which can enable man-in-the-middle attacks. This vulnerability is related to improper certificate validation (CWE-295).
CVSS v4.0
Score 9.1critical
Affected software
pkg:maven/com.linecorp.armeria/armeria-xdsRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects armeria-xds versions before 1.41.0, where the TLS peer verification for xDS upstream connections may be silently disabled. This failure in verifying TLS peers properly can allow attackers to perform man-in-the-middle attacks against xDS-managed upstream connections. The issue is categorized under CWE-295, indicating improper certificate validation. The CVSS 4.0 score is 9.1, reflecting a critical severity with network attack vector, high attack complexity, and partial attack prerequisites.
Potential Impact
If exploited, this vulnerability could allow attackers to intercept and manipulate traffic between the affected Armeria service and its upstream xDS servers by bypassing TLS peer verification. This undermines the confidentiality and integrity of the communication channel, potentially leading to data exposure or injection of malicious data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch information is provided at this time. Users should monitor LY Corporation's advisories for updates and apply any forthcoming patches promptly.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- LY-Corporation
- Date Reserved
- 2026-06-09T06:50:05.781Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a850bc4c6e8be0332ff009f
Added to database: 08/19/2026, 01:49:56 UTC
Last enriched: 08/19/2026, 02:04:18 UTC
Last updated: 08/19/2026, 02:10:38 UTC
Views: 4
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