CVE-2026-108711 — Plastic Labs Honcho through 3.3.0 Incorrect Authorization via POST /v3/workspaces
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_cre…
Published: 2026-10-11 · CVSS: 5.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7