A security flaw has been discovered in Trusted Domain Project OpenDKIM up to 2.11.0. The impacted element is the function dkim_process_set of the file dkim.c of the component Tag Tokenizer. Performing a manipulation results in use of less trusted source.
The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products
trusted domain project:opendkim
References 5
https://vuldb.com/vuln/411034
VDB-411034 | Trusted Domain Project OpenDKIM Tag Tokenizer dkim.c dkim_process_set less trusted source
https://vuldb.com/vuln/411034/cti
VDB-411034 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/cve/CVE-2026-101277
CVE-2026-101277 | CVE Analysis and Report
https://vuldb.com/submit/918270
Submit #918270 | The Trusted Domain Project OpenDKIM 2.11.0 Improper Input Validation
https://xuyongzhe-vt.github.io/share/opendkim-tag-parser-desync.html
NVD