Answer in brief
CVE-2026-108711 records a Medium severity (CVSS 5.3) vulnerability in Plastic Labs Honcho through 3.3.0 Incorrect Authorization via POST /v3/workspaces. The current sources do not mark it as known exploited. The current feed maps Plastic Labs/honcho (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 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.
The current feed maps Plastic Labs/honcho (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Plastic Labs/honchogeneric | >=0 <=3.3.0 | Not reported |
Published upstream
Oct 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 11, 2026
Plastic Labs Honcho through 3.3.0 contains an incorrect authorization vulnerability that allows peer- or session-scoped API key holders to read workspace data because get_or_create_workspace checks only the workspace claim. Attackers can submit their parent workspace name to the POST /v3/workspaces endpoint to retrieve workspace metadata and configuration, including custom_instructions, reserved for workspace or admin keys.
Quoted source text, attributed separately from HOL analysis.