Detections
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SCA: security update for langgraph-api (GHSA-2c9q-c2q9-qgqv)

medium Tenable Cloud Security Plugin ID 477855

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2026-55235)

Solution

Update the langgraph-api library and its related packages to version 0.10.0 or later.

See Also

https://github.com/advisories/GHSA-2c9q-c2q9-qgqv

Plugin Details

Severity: Medium

ID: 477855

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/29/2026

Updated: 10/29/2026

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 51.68

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5.6

Temporal Score: 4.1

Vector: CVSS2#AV:N/AC:H/Au:S/C:N/I:C/A:P

CVSS Score Source: CVE-2026-55235

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 8/19/2026

Vulnerability Publication Date: 8/19/2026

Reference Information

CVE: CVE-2026-55235

cwe: CWE-287