Bug 2542896 (CVE-2026-101281) - CVE-2026-101281 opendmarc: OpenDMARC: Authentication bypass via improper SPF macro handling
Summary: CVE-2026-101281 opendmarc: OpenDMARC: Authentication bypass via improper SPF ...
Keywords:
Status: NEW
Alias: CVE-2026-101281
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2542955 2542957
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-29 01:01 UTC by OSIDB Bzimport
Modified: 2026-09-29 06:09 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-09-29 01:01:42 UTC 
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.
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