Echo: nginx: security update to 1.26.3-3+deb13u7+e1nginx-1.30: security update to 1.30.1nginx-1.31: security update to 1.31.0

medium Tenable Cloud Security Plugin ID 461857

Description

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

- NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssl_module module when the
ssl_verify_client directive is set to "on" or "optional," and the ssl_ocsp directive is set to "on" or the
leaf parameters are configured with a resolver. With this configuration, an unauthenticated attacker can
send requests along with conditions beyond its control that may cause a heap-use-after-free error in the
NGINX worker process. This vulnerability may result in limited modification of data or the NGINX worker
process restarting. Note: Software versions which have reached End of Technical Support (EoTS) are not
evaluated. (CVE-2026-40701)

Solution

Update the nginx library and its related packages to version 1.26.3-3+deb13u7+e1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-40701

Plugin Details

Severity: Medium

ID: 461857

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 7.85

CVSS v2

Risk Factor: Medium

Base Score: 5.1

Temporal Score: 3.8

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

CVSS Score Source: CVE-2026-40701

CVSS v3

Risk Factor: Medium

Base Score: 4.8

Temporal Score: 4.2

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.3

Threat Score: 1.7

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/14/2026

Vulnerability Publication Date: 5/13/2026

Reference Information

CVE: CVE-2026-40701