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FreeBSD : ejabberd -- Potential DDoS in XML Parser (82064ab5-3d76-11f1-89ab-901b0e9408dc)

high Nessus Plugin ID 309046

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 82064ab5-3d76-11f1-89ab-901b0e9408dc advisory.

 ejabberd team reports:
 This release adds new options that limit max memory used by XML parser used to process XMPP payloads, to prevent potential Denial of Service attack. The default values for pre-auth provide sufficient protection for ejabberd against non-authenticated users on c2s and s2s, so there is no need to change your configuration.

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://www.process-one.net/blog/ejabberd-26-04/

http://www.nessus.org/u?316402ed

Plugin Details

Severity: High

ID: 309046

File Name: freebsd_pkg_82064ab53d7611f189ab901b0e9408dc.nasl

Version: 1.1

Type: Local

Published: 4/21/2026

Updated: 4/21/2026

Supported Sensors: Nessus

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:ejabberd, cpe:/o:freebsd:freebsd

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/21/2026

Vulnerability Publication Date: 4/20/2026