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CVE-2026-35414 is an authorization-bypass vulnerability in OpenSSH versions before 10.3. OpenSSH incorrectly handles the authorized_keys principals option in uncommon configurations that combine a principals list with a Certificate Authority whose use of comma characters triggers the flaw. This can cause intended principal restrictions on certificate-based SSH authentication to be bypassed.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
39 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An Important-severity vulnerability addressed by a CentOS/TuxCare security update. It has a CVSS v3.0 score vector of CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H, indicating network reachability, high attack complexity, no privileges or user interaction required, and high potential impact to confidentiality, integrity, and availability.
An Important-severity, network-reachable vulnerability with high attack complexity and no required privileges or user interaction. The supplied CVSS v3 vector indicates high confidentiality, integrity, and availability impact.
A network-accessible OpenSSH-related vulnerability addressed by Ubuntu USN-8804-1.
A vulnerability addressed by the EulerOS_SA-2026-3534 security advisory; the supplied CVSS v3 temporal vector indicates proof-of-concept exploit maturity.
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.