Missing Authorization Affecting github.com/coder/coder/coderd/agentapi package, versions >=0.0.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-GOLANG-GITHUBCOMCODERCODERCODERDAGENTAPI-17872199
- published6 Jul 2026
- disclosed6 Jul 2026
- creditUnknown
Introduced: 6 Jul 2026
CVE-2026-55432 (opens in a new tab)How to fix?
There is no fixed version for github.com/coder/coder/coderd/agentapi.
Overview
Affected versions of this package are vulnerable to Missing Authorization in the CreateSubAgent process. An attacker can gain unauthorized access to workspace applications by registering sub-agent apps with a sharing level that exceeds the administrator's configured maximum, thereby exposing these apps to unauthenticated users via wildcard app domains. This is only exploitable if the deployment uses Enterprise port-sharing policy, wildcard app hostnames are enabled, and the attacker is an authenticated workspace owner with an agent token.
Workaround
This vulnerability can be mitigated by disabling wildcard app hostnames (CODER_WILDCARD_ACCESS_URL) to block subdomain-based app routing.