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FreeBSD : nginx-module-cache-purge -- symlink traversal when walking cache trees (f0604004-c87b-11f1-9006-3497f65b111b)

low Nessus Plugin ID 366446

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 a vulnerability as referenced in the f0604004-c87b-11f1-9006-3497f65b111b advisory.

 The ngx_cache_purge developers report:

 Fixed a symlink traversal vulnerability during cache tree traversal.
 An attacker with the ability to create symbolic links inside the cache directory could potentially cause cache purge operations to delete arbitrary files accessible to the NGINX worker process (CVE-2026-108981).


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

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

Solution

Update the affected packages.

See Also

https://github.com/nginx-modules/ngx_cache_purge/releases/tag/3.0.4

http://www.nessus.org/u?2d4e9783

Plugin Details

Severity: Low

ID: 366446

File Name: freebsd_pkg_f0604004c87b11f190063497f65b111b.nasl

Version: 1.1

Type: Local

Published: 10/16/2026

Updated: 10/16/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 8.2

CVSS v2

Risk Factor: Low

Base Score: 2.4

Temporal Score: 1.8

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

CVSS Score Source: CVE-2026-108981

CVSS v3

Risk Factor: Low

Base Score: 3.6

Temporal Score: 3.2

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

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

Vulnerability Information

CPE: cpe:/o:freebsd:freebsd, p-cpe:/a:freebsd:freebsd:nginx-module-cache-purge

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: 10/12/2026

Reference Information

CVE: CVE-2026-108981