CVE-2026-101016

A vulnerability has been found in Trusted Domain Project OpenDMARC up to 1.4.2. This affects the function opendmarc_policy_parse_dmarc in the library libopendmarc/opendmarc_policy.c. The manipulation of the argument fo/rf/ri/pct/sp/adkim/aspf/rua/ruf leads to handling of exceptional conditions. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

• CWE-755

• https://vuldb.com/cve/CVE-2026-101016
• https://vuldb.com/submit/918242
• https://vuldb.com/vuln/410886
• https://vuldb.com/vuln/410886/cti
• https://xuyongzhe-vt.github.io/share/opendmarc-bad-tag-drops-policy.html

Published

Sep 28, 2026

Last Modified

Sep 28, 2026

Status

Awaiting Analysis

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