Improper Resource Shutdown or Release Affecting opendmarc package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.37% (31st percentile)

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  • Snyk IDSNYK-ECHOLATEST-OPENDMARC-20257515
  • published29 Sept 2026
  • disclosed28 Sept 2026

Introduced: 28 Sep 2026

CVE-2026-100890  (opens in a new tab)
CWE-404  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest opendmarc.

NVD Description

Note: Versions mentioned in the description apply only to the upstream opendmarc package and not the opendmarc package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

A flaw has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this vulnerability is the function opendmarc_spf_ipv6_explode in the library libopendmarc/opendmarc_spf.c of the component SPF Parser. This manipulation of the argument cp causes null pointer dereference. It is possible to initiate the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS Base Scores

version 3.1