CVE-2026-101278Trusted Domain Project OpenDMARC PSL Wildcard opendmarc_tld.c : opendmarc_get_tld origin validation
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 weakness has been identified in Trusted Domain Project OpenDMARC up to 1.4.2. This affects the function opendmarc_get_tld of the file libopendmarc/opendmarc_tld.c : of the component PSL Wildcard Handler. Executing a manipulation can lead to origin validation error. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
- CVSS
- 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
- Weakness (CWE)
- CWE-346, CWE-345
- 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
- Deferred
- Record last updated
- Oct 1, 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/411035vdb-entry, technical-description
- https://vuldb.com/vuln/411035/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2026-101278third-party-advisory
- https://vuldb.com/submit/918273third-party-advisory
- https://xuyongzhe-vt.github.io/share/opendmarc-psl-wildcard-orgdomain.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.