CVE-2026-101281High· 7.3▾ MidnightPoC availableA 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 ma…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 40.2 · likelihood 0.1 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 29.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.4%
Last analysed / modified upstream
Exploit / PoC code exists
0.4% → 0.4%
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.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-101280High· 7.3A vulnerability was detected in Trusted Domain Project OpenDMARC up to 1.4.2
CVE-2026-101279Medium· 6.5A security vulnerability has been detected in Trusted Domain Project OpenDMARC up to 1.4.2
CVE-2026-101278Medium· 4.3A weakness has been identified in Trusted Domain Project OpenDMARC up to 1.4.2
CVE-2026-100891High· 7.3A vulnerability has been found in Trusted Domain Project OpenDMARC up to 1.4.2
CVE-2026-100890Medium· 5.3A flaw has been found in Trusted Domain Project OpenDMARC up to 1.4.2
CVE-2026-100895Medium· 5.3A security flaw has been discovered in Trusted Domain Project OpenARC up to 1.0.0.Beta1