AUGUST 25, 2026
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Case File

CVE-2026-55432

MEDIUM · CVSS 5.4 EPSS 0.18% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-08 · Last synced 2026-08-07

CyberRota Analysis

AI-Generated

The vulnerability affects the Coder platform, specifically in versions prior to 2.29.7, 2.32.7, 2.33.8, and 2.34.2, where the `CreateSubAgent` RPC fails to validate app sharing levels against the configured maximum, allowing workspace owners to exceed administrative limits. This could lead to unauthorized access or resource exhaustion within a controlled workspace. Organizations using Coder for remote development environments should prioritize updating to the fixed versions or implement the recommended workaround to mitigate potential risks.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-55432
Severity
MEDIUM
CVSS
5.4
EPSS
0.18%

Original NVD Description

Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, the `CreateSubAgent` RPC did not validate a requested app sharing level against the template's `MaxPortSharingLevel` before persisting workspace apps, letting a workspace owner exceed the administrator's configured maximum. Exploitation requires the ability to register sub-agent apps in a workspace the attacker controls. The fix in versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2clamps the sub-agent app sharing level to the template's `MaxPortSharingLevel`. As a workaround, disable wildcard app hostnames (`CODER_WILDCARD_ACCESS_URL`) to block subdomain-based app routing.

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