CVE-2026-35414: CWE-670 Always-Incorrect Control Flow Implementation in OpenBSD OpenSSH
CVE-2026-35414 is a medium severity vulnerability in OpenSSH versions prior to 10.3. It involves an always-incorrect control flow implementation (CWE-670) related to the mishandling of the authorized_keys principals option in uncommon scenarios where a principals list is combined with a Certificate Authority that uses comma characters. This flaw may lead to limited confidentiality and integrity impacts but does not affect availability. There are no known exploits in the wild, and no official patch or vendor advisory is currently available.
AI Analysis
Technical Summary
This vulnerability in OpenSSH before version 10.3 arises from an incorrect control flow implementation when processing the authorized_keys principals option in edge cases involving a principals list combined with a Certificate Authority that uses commas. The flaw is categorized under CWE-670 (Always-Incorrect Control Flow Implementation). It can cause limited confidentiality and integrity issues but does not impact system availability. No vendor advisory or patch information is currently available, and no exploitation has been reported.
Potential Impact
The vulnerability could result in limited confidentiality and integrity impacts due to improper handling of principals in authorized_keys when combined with certain Certificate Authorities. Availability is not affected. No known active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should exercise caution when using principals lists combined with Certificate Authorities that include comma characters in authorized_keys configurations.
CVE-2026-35414: CWE-670 Always-Incorrect Control Flow Implementation in OpenBSD OpenSSH
Description
CVE-2026-35414 is a medium severity vulnerability in OpenSSH versions prior to 10.3. It involves an always-incorrect control flow implementation (CWE-670) related to the mishandling of the authorized_keys principals option in uncommon scenarios where a principals list is combined with a Certificate Authority that uses comma characters. This flaw may lead to limited confidentiality and integrity impacts but does not affect availability. There are no known exploits in the wild, and no official patch or vendor advisory is currently available.
CVSS v3.1
Score 4.2medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in OpenSSH before version 10.3 arises from an incorrect control flow implementation when processing the authorized_keys principals option in edge cases involving a principals list combined with a Certificate Authority that uses commas. The flaw is categorized under CWE-670 (Always-Incorrect Control Flow Implementation). It can cause limited confidentiality and integrity issues but does not impact system availability. No vendor advisory or patch information is currently available, and no exploitation has been reported.
Potential Impact
The vulnerability could result in limited confidentiality and integrity impacts due to improper handling of principals in authorized_keys when combined with certain Certificate Authorities. Availability is not affected. No known active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should exercise caution when using principals lists combined with Certificate Authorities that include comma characters in authorized_keys configurations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-04-02T17:08:15.208Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69cea98de6bfc5ba1defd642
Added to database: 04/02/2026, 17:38:21 UTC
Last enriched: 06/04/2026, 21:17:58 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 593
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