Detections
Analytics

SCA: security update for anthropic (GHSA-w828-4qhx-vxx3)

medium Tenable Cloud Security Plugin ID 439664

Description

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

 - The Claude SDK for Python provides access to the Claude API from Python applications. From version 0.86.0
 to before version 0.87.0, the async local filesystem memory tool in the Anthropic Python SDK validated
 that model-supplied paths resolved inside the sandboxed memory directory, but then returned the unresolved
 path for subsequent file operations. A local attacker able to write to the memory directory could retarget
 a symlink between validation and use, causing reads or writes to escape the sandbox. The synchronous
 memory tool implementation was not affected. This issue has been patched in version 0.87.0.
 (CVE-2026-34452)

Solution

Update the anthropic library and its related packages to version 0.87.0 or later.

See Also

https://github.com/advisories/GHSA-w828-4qhx-vxx3

Plugin Details

Severity: Medium

ID: 439664

Version: Revision 1.7

Type: Local

Family: SCA Checks

Published: 4/2/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 52.04

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 4.5

Temporal Score: 3.3

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

CVSS Score Source: CVE-2026-34452

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

CVSS v4

Risk Factor: Medium

Base Score: 5.8

Threat Score: 1.9

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 4/1/2026

Vulnerability Publication Date: 3/31/2026

Reference Information

CVE: CVE-2026-34452