CVE-2026-100888

Published: Set 28, 2026 Last Modified: Set 28, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,5
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
HIGH 7,3
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: low
Integrity: low
Availability: low
HIGH 7,5
Access Vector: network
Access Complexity: low
Authentication: none
Confidentiality: partial
Integrity: partial
Availability: partial

Description

AI Translation Available

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.

119

Improper Restriction of Operations within the Bounds of a Memory Buffer

Stable
Common Consequences
Security Scopes Affected:
Integrity Confidentiality Availability
Potential Impacts:
Execute Unauthorized Code Or Commands Modify Memory Read Memory Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory)
Applicable Platforms
Languages: Memory-Unsafe, C, C++, Assembly
View CWE Details
787

Out-of-bounds Write

Draft
Common Consequences
Security Scopes Affected:
Integrity Availability Other
Potential Impacts:
Modify Memory Execute Unauthorized Code Or Commands Dos: Crash, Exit, Or Restart Unexpected State
Applicable Platforms
Languages: Memory-Unsafe, C, C++, Assembly
Technologies: ICS/OT
View CWE Details
https://vuldb.com/cve/CVE-2026-100888
https://vuldb.com/submit/917015
https://vuldb.com/vuln/410837
https://vuldb.com/vuln/410837/cti
https://weitongli.com/share/opendkim-h-tag-oob-write.html