CVE-2026-11751: CWE-295 in LY Corporation Armeria
CVE-2026-11751 is a critical vulnerability in LY Corporation's Armeria product affecting armeria-xds versions prior to 1.41.0. The flaw involves the silent disabling of TLS peer verification for xDS upstream connections, which could allow man-in-the-middle attacks. This vulnerability is identified as CWE-295 and has a CVSS 4.0 score of 9.1, indicating high impact and exploitability under certain conditions.
AI Analysis
Technical Summary
The vulnerability in armeria-xds versions before 1.41.0 allows TLS peer verification for xDS upstream connections to be silently disabled. This weakness can enable attackers to perform man-in-the-middle attacks against xDS-managed upstream connections by bypassing TLS verification. The issue is categorized under CWE-295 (Improper Certificate Validation). The CVSS 4.0 vector indicates network attack vector, high attack complexity, no privileges required, no user interaction, and high impact on confidentiality and integrity.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to intercept and manipulate traffic between the Armeria client and upstream xDS servers, compromising confidentiality and integrity of the communication. This could lead to unauthorized data disclosure or modification in transit.
Mitigation Recommendations
A fix is available in armeria-xds version 1.41.0 and later. Users should upgrade to version 1.41.0 or newer to remediate this vulnerability. No additional mitigations are specified or required if the upgrade is applied.
CVE-2026-11751: CWE-295 in LY Corporation Armeria
Description
CVE-2026-11751 is a critical vulnerability in LY Corporation's Armeria product affecting armeria-xds versions prior to 1.41.0. The flaw involves the silent disabling of TLS peer verification for xDS upstream connections, which could allow man-in-the-middle attacks. This vulnerability is identified as CWE-295 and has a CVSS 4.0 score of 9.1, indicating high impact and exploitability under certain conditions.
CVSS v4.0
Score 9.1critical
Affected software
LY Corporation
Armeria
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
The vulnerability in armeria-xds versions before 1.41.0 allows TLS peer verification for xDS upstream connections to be silently disabled. This weakness can enable attackers to perform man-in-the-middle attacks against xDS-managed upstream connections by bypassing TLS verification. The issue is categorized under CWE-295 (Improper Certificate Validation). The CVSS 4.0 vector indicates network attack vector, high attack complexity, no privileges required, no user interaction, and high impact on confidentiality and integrity.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to intercept and manipulate traffic between the Armeria client and upstream xDS servers, compromising confidentiality and integrity of the communication. This could lead to unauthorized data disclosure or modification in transit.
Mitigation Recommendations
A fix is available in armeria-xds version 1.41.0 and later. Users should upgrade to version 1.41.0 or newer to remediate this vulnerability. No additional mitigations are specified or required if the upgrade is applied.
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
Threat ID: 6a850bc4c6e8be0332ff009f
Added to database: 08/19/2026, 01:49:56 UTC
Last enriched: 09/11/2026, 10:16:59 UTC
Last updated: 10/02/2026, 02:46:02 UTC
Views: 74
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