CVE-2026-101016Trusted Domain Project OpenDMARC opendmarc_policy.c opendmarc_policy_parse_dmarc exceptional condition
Updated under an hour ago ()
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It affects Trusted Domain Project OpenDMARC. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:C
- Weakness (CWE)
- CWE-755
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 28, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Trusted Domain Project OpenDMARC trusted_domain_project:opendmarc | 1.4.0; 1.4.1; 1.4.2 | CNA record |
References
- https://vuldb.com/vuln/410886vdb-entry, technical-description
- https://vuldb.com/vuln/410886/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2026-101016third-party-advisory
- https://vuldb.com/submit/918242third-party-advisory
- https://xuyongzhe-vt.github.io/share/opendmarc-bad-tag-drops-policy.htmlexploit
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.