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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
coder coder unaffected
Version Status Constraints
2.0.0 affected < 2.34.8
2.34.8 unaffected —

No data.

No data.

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Project Subscriptions

Vendors Products
Coder Subscribe
Coder Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/coder/coder/security/advisories/GHSA-98qx-9p2x-c4wh cve-icon cve-icon
https://www.vulncheck.com/advisories/coder-2.0.0-before-2.34.8-open-redirect-via-workspace-app-proxy cve-icon cve-icon
History

Sun, 18 Oct 2026 12:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Sat, 17 Oct 2026 19:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Coder 2.0.0 before 2.34.8 Open Redirect via Workspace App Proxy
First Time appeared Coder
Coder coder
Weaknesses CWE-601
CPEs cpe:2.3:a:coder:coder:*:*:*:*:*:*:*:*
Vendors & Products Coder
Coder coder
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-18T11:42:56.130Z

Reserved: 2026-10-17T12:20:52.372Z

Link: CVE-2026-111931

cve-icon Vulnrichment

Updated: 2026-10-18T11:42:14.251Z

cve-icon NVD

Status : Received

Published: 2026-10-17T19:16:36.080

Modified: 2026-10-18T12:17:11.093

Link: CVE-2026-111931

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-17T21:15:15Z

Weaknesses