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Back to active CVEs
Medium · CVSS 5.3CVE-2026-111931

Coder 2.0.0 before 2.34.8 Open Redirect via Workspace App ProxyCVE-2026-111931

Answer in brief

CVE-2026-111931 records a Medium severity (CVSS 5.3) vulnerability in Coder 2.0.0 before 2.34.8 Open Redirect via Workspace App Proxy. The current sources do not mark it as known exploited. The current feed maps coder/coder (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 17, 2026Updated Oct 17, 2026Source checked Oct 17, 2026First seen by HOL Oct 17, 2026Material review Oct 17, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps coder/coder (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
coder/codergeneric>=2.0.0 <2.34.82.34.8

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for coder/coder.
  2. 2Review the reported fix. Update coder/coder to 2.34.8 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 17, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 17, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 17, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Coder from 2.10.0 before 2.34.8 Information Disclosure via Agent /debug/manifestSame coder/coder package
  • Coder before 2.35.4 Credential Theft via Workspace Proxy Hostname Prefix MatchSame coder/coder package
  • Coder 2.0.0 before 2.34.8 Authorization Bypass via User-Level ACL in RBAC PolicySame coder/coder package
  • Coder 2.30.0 before 2.34.8 Cross-Organization File Disclosure via DownloadFile RPCSame coder/coder package
  • Coder from 2.26.0 before 2.34.8 Information Disclosure via Workspace ACL EndpointSame coder/coder package
  • Coder before 2.34.2 Stored HTML Injection via Appearance SettingsSame coder/coder package

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-601
Source
CVE List V5
Source checked
Oct 17, 2026
References
2 linked sources
Open source record