MEDIUM 5.5 NVD
CVE-2026-100890
A flaw has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this vulnerability is the function opendmarc_spf_ipv6_explode in the library
A flaw has been found 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. It is possible to initiate the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
References
- https://vuldb.com/cve/CVE-2026-100890
- https://vuldb.com/submit/917188
- https://vuldb.com/vuln/410840
- https://vuldb.com/vuln/410840/cti
- https://weitongli.com/share/opendmarc-ip6-wild-pointer.html
This medium severity vulnerability with a CVSS score of 5.5 was published on 2026-09-28 via NVD.
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