Answer in brief
CVE-2026-111927 records a High severity (CVSS 8.7) vulnerability in Coder before 2.35.4 Credential Theft via Workspace Proxy Hostname Prefix Match. The current sources do not mark it as known exploited. The current feed maps coder/coder (generic), coder/coder (generic), coder/coder (generic), 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.
CVSS is 8.7. 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.
The current feed maps coder/coder (generic), coder/coder (generic), coder/coder (generic), coder/coder (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| coder/codergeneric | >=2.35.0 <2.35.4 | 2.35.4 |
| coder/codergeneric | >=2.34.0 <2.34.8 | 2.34.8 |
| coder/codergeneric | >=2.33.0 <2.33.12 | 2.33.12 |
| coder/codergeneric | >=0 <2.29.20 | 2.29.20 |
Published upstream
Oct 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 17, 2026
Coder before 2.29.20, 2.33.0 before 2.33.12, 2.34.0 before 2.34.8, and 2.35.0 before 2.35.4 contains an improper hostname validation flaw in GetWorkspaceProxyByHostname whose SIMILAR TO pattern performs a prefix match, so any domain that is a string prefix of a workspace-proxy access URL is trusted as a proxy. Attackers owning such a domain can lure an authenticated victim to a crafted /api/v2/applications/auth-redirect link, capture the redirected application_connect API key, and replay it to access the victim's workspace apps.
Quoted source text, attributed separately from HOL analysis.