CVE-2026-100888
highA weakness has been identified in Trusted Domain Project OpenDKIM up to 2.11.0.
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://vuldb.com/cve/CVE-2026-100888 cna@vuldb.com
- https://vuldb.com/submit/917015 cna@vuldb.com
- https://vuldb.com/vuln/410837 cna@vuldb.com
- https://vuldb.com/vuln/410837/cti cna@vuldb.com
- https://weitongli.com/share/opendkim-h-tag-oob-write.html cna@vuldb.com