CVE-2026-101014

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.

CVSS v3 7.3 HIGH
CVSS v2.0 7.5 HIGH

7.3^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/trusteddomainproject/OpenDMARC/commit/b3b1da9264bc80324094a27c71e7369bdedc62ae
https://github.com/trusteddomainproject/OpenDMARC/pull/188
https://github.com/trusteddomainproject/OpenDMARC/pull/344
https://vuldb.com/cve/CVE-2026-101014
https://vuldb.com/submit/917100
https://vuldb.com/vuln/410884
https://vuldb.com/vuln/410884/cti
https://weitongli.com/share/opendmarc-cleanup-off-by-one.html

Configurations

No configuration.

History

28 Sep 2026, 09:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-28 09:17

Updated : 2026-09-28 15:15

NVD link : CVE-2026-101014

Mitre link : CVE-2026-101014

CVE.ORG link : CVE-2026-101014

JSON object : View

Products Affected

No product.

CWE

CWE-189

Numeric Errors

CWE-193

Off-by-one Error

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