CVE-2026-55235 - CERT CVE
ID CVE-2026-55235
Sažetak langgraph-api implements the LangGraph API for rapid development and testing. Prior to 0.10.0, langgraph-api permits a run or cron to specify a relative webhook target that is delivered through an in-process loopback transport, and the authentication middleware treats that transport as internal without applying the authentication context used for external requests. In deployments that rely on per-user authorization to separate threads and runs, an authenticated user can direct a webhook to the server's own thread and run routes, allowing creation of a run on or modification of another user's thread and limited incorporation of the targeted thread's metadata into the created run record. The affected path requires webhook targets and per-user authorization boundaries; deployments that deliberately re-enable loopback delivery should restrict it to controlled same-process routes because those webhooks remain unauthenticated. This issue is fixed in version 0.10.0.
Reference
CVSS
Base: 5.9
Impact: 4.2
Exploitability:1.6
Pristup
VektorSloženostAutentikacija
NETWORK HIGH LOW
Impact
PovjerljivostCjelovitostDostupnost
NONE HIGH LOW
CVSS vektor CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L
Zadnje važnije ažuriranje 14-09-2026 - 16:17
Objavljeno 14-09-2026 - 16:17