A flaw was found in rsyslog. When using the imdtls input module configured for name or fingerprint authentication, permitted-peer identity checks are not enforced after a successful DTLS handshake. A remote attacker possessing a valid certificate signed by the listener's trusted Certificate Authority could bypass peer restrictions and inject unauthorized syslog records into the input stream.
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History
Tue, 29 Sep 2026 13:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw was found in rsyslog. When using the imdtls input module configured for name or fingerprint authentication, permitted-peer identity checks are not enforced after a successful DTLS handshake. A remote attacker possessing a valid certificate signed by the listener's trusted Certificate Authority could bypass peer restrictions and inject unauthorized syslog records into the input stream. | |
| Title | rsyslog: rsyslog: imdtls permitted-peer authorization bypass | |
| Weaknesses | CWE-287 | |
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| Metrics |
threat_severity
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cvssV3_1
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