FreeBSD : nginx -- multiple vulnerabilities (95970257-c867-11f1-9006-3497f65b111b)

critical Nessus Plugin ID 366445

Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 95970257-c867-11f1-9006-3497f65b111b advisory.

The nginx developers report:

A buffer overflow might occur in a worker process when using the alias directive if the request URI was changed by the rewrite directive and was then mapped to a file path (CVE-2026-15176).

A buffer overflow might occur in a worker process while evaluating string expressions with variables, which affected the document root calculation and request logging in the http and stream modules (CVE-2026-93479).

When using HTTP/3 a part of an unknown frame might be treated as the request body, which might result in bypassing the client_max_body_size limit or injecting data in the proxied request (CVE-2026-95101).

When using TLS session ticket key rotation, one of the keys was left uninitialized, which might allow to forge a session (CVE-2026-97629).

When using asynchronous file I/O (AIO), use-after-free might occur in certain configurations if the SSI page has include virtual commands (CVE-2026-97205).

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

Plugin Details

Severity: Critical

ID: 366445

File Name: freebsd_pkg_95970257c86711f190063497f65b111b.nasl

Version: 1.1

Type: Local

Family: FreeBSD Local Security Checks

Published: 10/16/2026

Updated: 10/16/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.41

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-2026-97205

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

CVSS v4

Risk Factor: Critical

Base Score: 9.2

Threat Score: 7.2

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

CPE: cpe:/o:freebsd:freebsd, p-cpe:/a:freebsd:freebsd:nginx-devel, p-cpe:/a:freebsd:freebsd:nginx-full, p-cpe:/a:freebsd:freebsd:nginx-lite, p-cpe:/a:freebsd:freebsd:nginx

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 10/15/2026

Vulnerability Publication Date: 10/14/2026

Reference Information

CVE: CVE-2026-15176, CVE-2026-93479, CVE-2026-95101, CVE-2026-97205, CVE-2026-97629

Detections

Analytics