CVE-2026-35414 | OpenSSH up to 10.2 Certificate authorized_keys control flow

VDB-354951 · CVE-2026-35414 · GCVE-0-2026-35414 OPENSSH UP TO 10.2 CERTIFICATE AUTHORIZED_KEYS CONTROL FLOW HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.5 $5k-$25k 0.59+ Summaryinfo A vulnerability identified as problematic has been detected in OpenSSH up to 10.2. This vulnerability affects the function authorized_keys of the component Certificate Handler. Performing a manipulation results in control flow. This vulnerability is identified as CVE-2026-35414. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component. Detailsinfo A vulnerability classified as problematic has been found in OpenSSH up to 10.2. This affects the function authorized_keys of the component Certificate Handler. The manipulation with an unknown input leads to a control flow vulnerability. CWE is classifying the issue as CWE-670. The code contains a control flow path that does not reflect the algorithm that the path is intended to implement, leading to incorrect behavior any time this path is navigated. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is: OpenSSH before 10.3 mishandles the authorized_keys principals option in uncommon scenarios involving a principals list in conjunction with a Certificate Authority that makes certain use of comma characters. It is possible to read the advisory at openssh.org. This vulnerability is uniquely identified as CVE-2026-35414 since 04/02/2026. The exploitability is told to be difficult. It is possible to initiate the attack remotely. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 04/02/2026). Upgrading to version 10.3 eliminates this vulnerability. Productinfo Type Connectivity Software Name OpenSSH Version 10.0 10.1 10.2 License open-source CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 4.6 VulDB Meta Temp Score: 4.5 VulDB Base Score: 5.0 VulDB Temp Score: 4.8 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 4.2 CNA Vector (MITRE): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Control flow CWE: CWE-670 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: OpenSSH 10.3 Timelineinfo 04/02/2026 Advisory disclosed 04/02/2026 +0 days CVE reserved 04/02/2026 +0 days VulDB entry created 04/02/2026 +0 days VulDB entry last update Sourcesinfo Advisory: openssh.org Status: Confirmed CVE: CVE-2026-35414 (🔒) GCVE (CVE): GCVE-0-2026-35414 GCVE (VulDB): GCVE-100-354951 Entryinfo Created: 04/02/2026 19:35 Changes: 04/02/2026 19:35 (64) Complete: 🔍 Cache ID: 99:F68:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸