Detections
Analytics

Echo: gnutls28: security update to 3.8.9-3+e8

high Tenable Cloud Security Plugin ID 457525

Description

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

 - A flaw was found in gnutls. When validating certificates, an oversized Subject Alternative Name (SAN)
 could cause the validation process to incorrectly fall back to checking the Common Name (CN) field. This
 could allow a remote attacker to bypass proper certificate validation, potentially leading to spoofing or
 man-in-the-middle attacks. (CVE-2026-42013)

Solution

Update the gnutls28 library and its related packages to version 3.8.9-3+e8 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-42013

Plugin Details

Severity: High

ID: 457525

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 52.04

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

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

CVSS Score Source: CVE-2026-42013

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/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: 5/1/2026

Vulnerability Publication Date: 4/30/2026

Reference Information

CVE: CVE-2026-42013

IAVA: 2026-A-0405