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CVE-2026-35414 is a security bypass vulnerability in OpenSSH before 10.3 affecting sshd certificate principal matching for user-trusted Certificate Authority keys specified via authorized_keys. In uncommon configurations, sshd mishandles the authorized_keys principals="" option when the principals list contains multiple entries and a presented certificate includes a principal name containing a comma character. This can cause incorrect matching between the configured principals restriction and the certificate principal list, allowing inappropriate acceptance of a certificate principal that should not satisfy the restriction. The issue is limited to the authorized_keys principals option path used with CA keys and does not affect the primary OpenSSH certificate authentication model based on TrustedUserCAKeys together with AuthorizedPrincipalsFile.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
24 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.