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Echo: langchain-classic: security update to 0.3.30

high Tenable Self-Hosted Container Security Plugin ID 464205

Description

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

 - LangSmith Client SDKs provide SDK's for interacting with the LangSmith platform. Prior to LangSmith SDK
 Python 0.8.0 and JS/TS 0.6.0, the LangSmith SDK's prompt pull methods (pull_prompt / pull_prompt_commit in
 Python, pullPrompt / pullPromptCommit in JS/TS) fetch and deserialize prompt manifests from the LangSmith
 Hub. These manifests may contain serialized LangChain objects and model configuration that affect runtime
 behavior. When pulling a public prompt by owner/name identifier, the manifest content is controlled by an
 external party, but prior versions of the SDK did not distinguish this from pulling a prompt within the
 caller's own organization. This vulnerability is fixed in LangSmith SDK Python 0.8.0 and JS/TS 0.6.0.
 (CVE-2026-45134)

Solution

Update the langchain-classic library and its related packages to version 0.3.30 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-45134

Plugin Details

Severity: High

ID: 464205

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/3/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 52.03

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

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

CVSS Score Source: CVE-2026-45134

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/1/2026

Vulnerability Publication Date: 5/13/2026

Reference Information

CVE: CVE-2026-45134