OpenVPN 2.7_alpha1 through 2.7.5 using mbedTLS allows remote authenticated users to be misidentified by ignoring the configured X.509 username… (CVE-2026-63650)
OpenVPN 2.7_alpha1 through 2.7.5 using mbedTLS allows remote authenticated users to be misidentified by ignoring the configured X.509 username identity lookup field
AI Analysis
Technical Summary
The vulnerability in OpenVPN 2.7_alpha1 through 2.7.5 when using mbedTLS allows remote authenticated users to bypass the configured X.509 username identity lookup field, resulting in potential misidentification of users. This is classified under CWE-115, indicating improper encoding or escaping of output, which in this context leads to incorrect user identity validation. The vulnerability has a low severity rating and no known exploits in the wild. No patch or remediation information is currently provided.
Potential Impact
The impact is limited to the potential misidentification of remote authenticated users, which could lead to incorrect access control decisions. Since the vulnerability requires authentication and has a low severity rating, the risk to systems is relatively low. There is no indication of privilege escalation, denial of service, or data disclosure directly associated with this issue.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, administrators should be aware of the potential for user misidentification when using affected OpenVPN versions with mbedTLS and consider additional authentication or monitoring controls as appropriate.
OpenVPN 2.7_alpha1 through 2.7.5 using mbedTLS allows remote authenticated users to be misidentified by ignoring the configured X.509 username… (CVE-2026-63650)
Description
OpenVPN 2.7_alpha1 through 2.7.5 using mbedTLS allows remote authenticated users to be misidentified by ignoring the configured X.509 username identity lookup field
CVSS v4.0
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in OpenVPN 2.7_alpha1 through 2.7.5 when using mbedTLS allows remote authenticated users to bypass the configured X.509 username identity lookup field, resulting in potential misidentification of users. This is classified under CWE-115, indicating improper encoding or escaping of output, which in this context leads to incorrect user identity validation. The vulnerability has a low severity rating and no known exploits in the wild. No patch or remediation information is currently provided.
Potential Impact
The impact is limited to the potential misidentification of remote authenticated users, which could lead to incorrect access control decisions. Since the vulnerability requires authentication and has a low severity rating, the risk to systems is relatively low. There is no indication of privilege escalation, denial of service, or data disclosure directly associated with this issue.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, administrators should be aware of the potential for user misidentification when using affected OpenVPN versions with mbedTLS and consider additional authentication or monitoring controls as appropriate.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-f94x-h63g-g9m8
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-63650"]
- Ecosystems
- []
- Database Specific Severity
- LOW
- Cvss Version
- 4.0
Threat ID: 6a7ff5e6bf8831d53987df65
Added to database: 08/15/2026, 05:15:18 UTC
Last enriched: 08/15/2026, 06:14:18 UTC
Last updated: 08/16/2026, 00:41:15 UTC
Views: 8
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