---
id: CVE-2026-111931
title: Coder 2.0.0 before 2.34.8 Open Redirect via Workspace App Proxy
summary: >-
  Coder from 2.0.0 before 2.34.8 contains an open redirect vulnerability in
  handleAPIKeySmuggling that allows attackers to redirect users externally via
  unsanitized r.URL.Path values. Attackers can craft links on trusted workspace
  app subd…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-601
vendor: coder
product: coder
affected:
  - coder >= 2.0.0 < 2.34.8
published: '2026-10-17'
updated: '2026-10-17'
sourceUpdated: '2026-10-17T18:46:42.064Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-111931'
references:
  - url: 'https://github.com/coder/coder/security/advisories/GHSA-98qx-9p2x-c4wh'
    label: GitHub Security Advisory (GHSA-98qx-9p2x-c4wh)
  - url: >-
      https://www.vulncheck.com/advisories/coder-2.0.0-before-2.34.8-open-redirect-via-workspace-app-proxy
    label: >-
      VulnCheck Advisory: Coder 2.0.0 before 2.34.8 Open Redirect via Workspace
      App Proxy
tags:
  - cve.org
ingestedAt: '2026-10-17T19:08:56.618Z'
---

## Overview

Coder from 2.0.0 before 2.34.8 contains an open redirect vulnerability in handleAPIKeySmuggling that allows attackers to redirect users externally via unsanitized r.URL.Path values. Attackers can craft links on trusted workspace app subdomains with paths beginning with double slashes, which become scheme-relative redirects to attacker sites for phishing.

## Affected

- `coder >= 2.0.0 < 2.34.8`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.