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CVE-2026-78635— Improper Input Validation in the Okta Privileged Access SSH Client URL Handler Argument

Quick assessment

Affected
Okta Okta Privileged Access Client
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Okta 特权访问客户端的 URL 处理器在将目标值追加到命令行参数之前，未插入选项终止符（option terminator，如 ）。当 协议处理链接中包含以连字符（ ）开头的值时，底层的 CLI 框架会将其误认为是一个命令行标志（flag），从而导致 SSH 客户端的行为发生非预期的变更。

CVSS 5.0 · Medium

Possible ATT&CK Techniques 1 AI

T1563 · Remote Service Session Hijacking
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I. Basic Information for CVE-2026-78635

Vulnerability Information
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Vulnerability Title
Improper Input Validation in the Okta Privileged Access SSH Client URL Handler Argument
Source: CVE Program / CVE List V5
Vulnerability Description
The Okta Privileged Access client URL handler does not insert an option terminator before appending the target value to the command-line arguments. When a scaleft:// protocol handler link contains a value beginning with a hyphen, the underlying CLI framework interprets it as a command-line flag, causing unintended modification of the SSH client's behavior.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
参数注入或修改
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Okta Okta Privileged Access Client 1.18.0 ~ 1.113.0 -

II. Public POCs for CVE-2026-78635

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III. Intelligence Information for CVE-2026-78635

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Vendor Advisories for CVE-2026-78635 (1)

Same Patch Batch · Okta · 2026-09-08 · 17 CVEs total

CVE-2026-78626 8.1 HIGH Improper Input Sanitization in Okta Access Gateway Protected Rules
CVE-2026-78623 7.7 HIGH Improper Handling of SAML Assertion Attributes in Okta Access Gateway Advanced Mode Datast
CVE-2026-78574 7.5 HIGH Improper Assembly Resolution in Okta Hyperdrive Integration Plugin Registry Handling
CVE-2026-78627 7.3 HIGH Improper Credential Protection in Okta Hyperdrive Integration Installer Logging
CVE-2026-78579 6.8 MEDIUM Improper Input Sanitization in Okta Access Gateway LDAP Datastore Filter Interpolation
CVE-2026-78625 6.7 MEDIUM Insufficient Validation of Dashboard Application Labels in Okta Access Gateway Dashboard S
CVE-2026-78630 6.7 MEDIUM Improper Input Neutralization in Okta Access Gateway SNMP Configuration Processing
CVE-2026-78550 6.6 MEDIUM Improper Input Handling in Okta Access Gateway Management Console Exception Handler
CVE-2026-78545 6.6 MEDIUM Improper Input Sanitization in Okta Access Gateway Application Label Configuration
CVE-2026-78552 6.0 MEDIUM Validation Bypass in Okta Access Gateway Custom Directives
CVE-2026-78622 6.0 MEDIUM Improper Link Resolution in Okta Verify for Windows Uninstaller Data Removal
CVE-2026-78620 5.9 MEDIUM Improper Path Validation in Okta Access Gateway Kerberos Configuration Handling
CVE-2026-78629 5.6 MEDIUM Improper Authentication Verification in the Okta Hyperdrive Agent MFA Response Handling
CVE-2026-78631 5.3 MEDIUM Improper Restriction of Sensitive Information in Okta Hyperdrive Agent Logging
CVE-2026-78624 4.9 MEDIUM Improper Path Validation in Okta Access Gateway Backup and Restore Functionality
CVE-2026-78560 4.8 MEDIUM Improper Authentication Validation in Okta Access Gateway Pass-Through Authentication Sour

IV. Related Vulnerabilities

Same product: Okta Privileged Access Client
Same vendor: Okta
Same weakness: CWE-88

V. Comments for CVE-2026-78635

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