Rsyslog: [mdtls discards the peer-identity verification result] (CVE-2026-93402)
Description
A vulnerability in rsyslog's mdtls component causes it to discard the peer-identity verification result. This issue affects multiple specific Ubuntu package versions of rsyslog. The severity is assessed as medium. No CVSS score or detailed technical impact is provided. There is no information about available patches or exploits in the wild.
Affected software
pkg:deb/ubuntu/rsyslog?arch=source&distro=trustypkg:deb/ubuntu/rsyslog?arch=source&distro=esm-infra-legacy/xenialpkg:deb/ubuntu/rsyslog?arch=source&distro=esm-infra/bionicpkg:deb/ubuntu/rsyslog?arch=source&distro=esm-infra/focalpkg:deb/ubuntu/rsyslog?arch=source&distro=jammypkg:deb/ubuntu/rsyslog?arch=source&distro=noblepkg:deb/ubuntu/rsyslog?arch=source&distro=stonkingpkg:deb/ubuntu/rsyslog?arch=source&distro=resoluteRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability identified as CVE-2026-93402 affects the rsyslog software, specifically the mdtls module, which discards the peer-identity verification result. This could potentially undermine the verification process in TLS communications handled by mdtls. The vulnerability is present in numerous Ubuntu-specific rsyslog package versions. No further technical details or CVSS metrics are provided in the source data.
Potential Impact
The impact is medium severity as indicated, but specific consequences or exploitation scenarios are not detailed. The discarding of peer-identity verification results may weaken TLS security in rsyslog communications, potentially allowing unverified peers to be accepted, which could lead to trust or authentication issues in logging infrastructure.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the data. Users should monitor vendor advisories for updates and apply patches once available.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-93402
- Osv Schema Version
- 1.7.0
- Ecosystems
- ["Ubuntu:14.04:LTS","Ubuntu:Pro:16.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:26.10","Ubuntu:26.04:LTS"]
Threat ID: 6ad3f5272cdf04f65665859d
Added to database: 10/17/2026, 22:22:31 UTC
Last enriched: 10/17/2026, 23:09:35 UTC
Last updated: 10/17/2026, 23:09:35 UTC
Views: 2
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