CVE-2026-101281

A flaw was found in OpenDMARC. The Sender Policy Framework SPF macro handling logic improperly validates the sender domain during message processing. A remote attacker can exploit this vulnerability by sending specially crafted email messages, potentially bypassing email authentication checks...

CVE-2026-101281

A flaw has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this vulnerability is the function opendmarcsp2findmailfromdomain of the file libopendmarc/opendmarcspf.c of the component SPF Macro Handler. This manipulation causes improper authentication. The attack is possible...

CVE-2026-101281 Trusted Domain Project OpenDMARC SPF Macro opendmarc_spf.c opendmarc_sp2_find_mailfrom_domain improper authentication

A flaw has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this vulnerability is the function opendmarcsp2findmailfromdomain of the file libopendmarc/opendmarcspf.c of the component SPF Macro Handler. This manipulation causes improper authentication. The attack is possible...

CVE-2026-101281

A flaw in Trusted Domain Project OpenDMARC (up to version 1.4.2) affects the SPF Macro Handler component. Specifically, the function opendmarc_sp2_find_mailfrom_domain within the file libopendmarc/opendmarc_spf.c can be manipulated to cause improper authentication . This vulnerability is exploita...

EUVD-2026-88599

A flaw has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this vulnerability is the function opendmarcsp2findmailfromdomain of the file libopendmarc/opendmarcspf.c of the component SPF Macro Handler. This manipulation causes improper authentication. The attack is possible...

Astra Linux – Vulnerability in libspf2

Exim libspf2 Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Exim libspf2. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing o...

OESA-2024-2586 libspf2 security update

libspf2 is an implementation of the SPF Sender Policy Framework specification as found at: http://www.ietf.org/internet-drafts/draft-mengwong-spf-00.txt SPF allows email systems to check SPF DNS records and make sure that an email is authorized by the administrator of the domain name that it is...

OESA-2024-2584 libspf2 security update

libspf2 is an implementation of the SPF Sender Policy Framework specification as found at: http://www.ietf.org/internet-drafts/draft-mengwong-spf-00.txt SPF allows email systems to check SPF DNS records and make sure that an email is authorized by the administrator of the domain name that it is...

ALPINE-CVE-2023-42118

Exim libspf2 Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Exim libspf2. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing o...

DEBIAN-CVE-2023-42118

Exim libspf2 Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Exim libspf2. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing o...