Trusted Domain Project OpenDMARC policy.c improper validation of unsafe equivalence in input
Published Sep 28, 2026
6.9
MEDIUMCVSS 4.0
EPSS 0.29%
Description
A flaw has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this issue is some unknown functionality of the file policy.c of the component Domain Handler. Executing a manipulation can lead to improper validation of unsafe equivalence in input. The attack may be launched 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.
Affected products
-
- Version 1.4.0StatusaffectedConstraints-
- Version 1.4.1StatusaffectedConstraints-
- Version 1.4.2StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Trusted Domain Project | OpenDMARC | n/a |
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Red Hat statement
OpenDMARC is not shipped in any Red Hat product. It is available only in Fedora and EPEL community repositories.
Red Hat mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
References (9)
- https://access.redhat.com/security/cve/CVE-2026-101015 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2542363 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2026-101015
- https://vuldb.com/cve/CVE-2026-101015 third-party-advisory
- https://vuldb.com/submit/917216 third-party-advisory
- https://vuldb.com/vuln/410885 vdb-entry
- https://vuldb.com/vuln/410885/cti signaturepermissions-required
- https://weitongli.com/share/opendmarc-unicode-dot-bypass.html exploit
- https://www.cve.org/CVERecord?id=CVE-2026-101015
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2026-101015 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2542363 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2026-101015 | ||
| https://vuldb.com/cve/CVE-2026-101015 | third-party-advisory | |
| https://vuldb.com/submit/917216 | third-party-advisory | |
| https://vuldb.com/vuln/410885 | vdb-entry | |
| https://vuldb.com/vuln/410885/cti | signaturepermissions-required | |
| https://weitongli.com/share/opendmarc-unicode-dot-bypass.html | exploit | |
| https://www.cve.org/CVERecord?id=CVE-2026-101015 |
Change history (0)
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