Detections
Analytics

Chainguard: zed: security update to 1.21.0-r4

high Tenable Cloud Security Plugin ID 472846

Description

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

 - Uncontrolled recursion in the unknown-key skip path of the aws-smithy-json runtime crate before 0.62.7,
 which the smithy-rs code generator invokes from every generated struct deserializer, might allow remote
 unauthenticated users to cause a denial of service (process abort via stack exhaustion) via a single small
 HTTP request containing deeply nested JSON to a smithy-rs generated server. To remediate this issue, users
 should upgrade to aws-smithy-json 0.62.7 or later and rebuild. (CVE-2026-18140)

Solution

Update the zed library and its related packages to version 1.21.0-r4 or later.

Plugin Details

Severity: High

ID: 472846

Version: Revision 1.1

Type: Local

Published: 10/5/2026

Updated: 10/5/2026

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.2

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-18140

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 7/30/2026

Reference Information

CVE: CVE-2026-18140