Detections
Analytics

Echo: curl: security update to 1:8.22.0-1+e1curl-8.1.1: security update to 8.1.1+e2curl-8.17.0: security update to 8.17.0+e2curl-8.8.0: security update to 8.8.0+e2

high Tenable Self-Hosted Container Security Plugin ID 476137

Description

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

 - Setting `CURLOPT_AWS_SIGV4` to NULL but does not disable SigV4 authentication, contrary to expectations
 and documentation. A subsequent transfer on the same handle still sends an `Authorization: AWS4-HMAC-
 SHA256` header to whatever URL isset next, leaking state information. (CVE-2026-86409)

Solution

Update the curl library and its related packages to version 1:8.22.0-1+e1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-86409

Plugin Details

Severity: High

ID: 476137

Version: Revision 1.4

Type: Local

Published: 10/18/2026

Updated: 11/5/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.61

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 5.6

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

CVSS Score Source: CVE-2026-86409

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/14/2026

Vulnerability Publication Date: 10/20/2026

Reference Information

CVE: CVE-2026-86409

IAVA: 2026-A-1143