CVE-2026-101281

A flaw has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this vulnerability is the function opendmarc_sp2_find_mailfrom_domain of the file libopendmarc/opendmarc_spf.c of the component SPF Macro Handler. This manipulation causes improper authentication. The attack is possible to be carried out remotely. The exploit has been published and may be used. Patch name: c48a74c758677fc5272a73eff15ffdbf8afda1a6. Applying a patch is the recommended action to fix this issue.

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/c48a74c758677fc5272a73eff15ffdbf8afda1a6
https://github.com/trusteddomainproject/OpenDMARC/issues/262
https://github.com/trusteddomainproject/OpenDMARC/pull/328
https://vuldb.com/cve/CVE-2026-101281
https://vuldb.com/submit/918284
https://vuldb.com/vuln/411038
https://vuldb.com/vuln/411038/cti
https://xuyongzhe-vt.github.io/share/opendmarc-spf-postmaster-macro.html

Configurations

No configuration.

History

29 Sep 2026, 01:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-29 01:16

Updated : 2026-10-01 16:17

NVD link : CVE-2026-101281

Mitre link : CVE-2026-101281

CVE.ORG link : CVE-2026-101281

JSON object : View

Products Affected

No product.

CWE

CWE-287

Improper Authentication

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