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CVE-2026-101014 Details

Description

A vulnerability was detected in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this vulnerability is the function opendmarc_util_cleanup in the library libopendmarc/opendmarc_util.c of the component DMARC Record Parser. Performing a manipulation results in off-by-one. The attack may be initiated remotely. The exploit is now public and may be used. The patch is named b3b1da9264bc80324094a27c71e7369bdedc62ae. To fix this issue, it is recommended to deploy a patch.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.3 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/trusteddomainproject/OpenDMARC/commit/b3b1da9264bc80324094a27c71e7369bdedc62ae	[email protected]
https://github.com/trusteddomainproject/OpenDMARC/pull/188	[email protected]
https://github.com/trusteddomainproject/OpenDMARC/pull/344	[email protected]
https://vuldb.com/cve/CVE-2026-101014	[email protected]
https://vuldb.com/submit/917100	[email protected]
https://vuldb.com/vuln/410884	[email protected]
https://vuldb.com/vuln/410884/cti	[email protected]
https://weitongli.com/share/opendmarc-cleanup-off-by-one.html	[email protected]

see all 8 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-189	Numeric Errors	[email protected]
CWE-193	Off-by-one Error	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

Date	Action	Recorded By
Sep 28, 2026	CVE Modified	CISA-ADP
Sep 28, 2026	New CVE Received	[email protected]