Out-of-Bounds Affecting opendkim package, versions *


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.29% (20th percentile)

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  • Snyk IDSNYK-ECHOLATEST-OPENDKIM-20257506
  • published29 Sept 2026
  • disclosed28 Sept 2026

Introduced: 28 Sep 2026

NewCVE-2026-100888  (opens in a new tab)
CWE-119  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest opendkim.

NVD Description

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

A weakness has been identified in Trusted Domain Project OpenDKIM up to 2.11.0. This affects the function dkim_canon_selecthdrs of the file libopendkim/dkim-canon.c of the component DKIM Signature Header Selection. Executing a manipulation of the argument h can lead to out-of-bounds write. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS Base Scores

version 3.1