Bug 2542283 - CVE-2026-100891 opendmarc: Trusted Domain Project OpenDMARC Internationalized Domain Name opendmarc_policy.c opendmarc_policy_query_dmarc encoding error [fedora-all]
Summary: CVE-2026-100891 opendmarc: Trusted Domain Project OpenDMARC Internationalized...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: opendmarc
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Kevin Fenzi
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["ffe70771-ef03-4018-8da6-b...
Depends On:
Blocks: CVE-2026-100891
TreeView+ depends on / blocked
 
Reported: 2026-09-28 02:49 UTC by Ganesh
Modified: 2026-09-28 02:49 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:


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Description Ganesh 2026-09-28 02:49:04 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

A vulnerability has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this issue is the function opendmarc_policy_query_dmarc in the library libopendmarc/opendmarc_policy.c of the component Internationalized Domain Name Handler. Such manipulation leads to encoding error. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.


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