CVE-2026-100890 | Trusted Domain Project OpenDMARC up to 1.4.2 SPF Parser opendmarc_spf.c opendmarc_spf_ipv6_explode cp null pointer dereference

A vulnerability identified as problematic has been detected in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this vulnerability is the function opendmarc_spf_ipv6_explode in the library libopendmarc/opendmarc_spf.c of the component SPF Parser. This manipulation of the argument cp causes null pointer dereference.

The identification of this vulnerability is CVE-2026-100890. It is possible to initiate the attack remotely. Furthermore, there is an exploit available.

The vendor was contacted early about this disclosure but did not respond in any way.VulDB Recent EntriesRead More