CVE-2026-101277
Trusted Domain Project OpenDKIM Tag Tokenizer dkim.c dkim_process_set less trusted source
- State
- Published
- Severity
- 6.9 Medium
- Published
- Sep 28, 2026
- Updated
- Sep 29, 2026
- Reserved
- Sep 28, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 6.5 Medium | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 6.4 Medium | AV:N/AC:L/Au:N/C:N/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
- CWE-348 Use of Less Trusted Source
Affected Products
| Product | Versions |
|---|---|
OpenDKIMTrusted Domain Project |
|
References
- VDB-411034 | Trusted Domain Project OpenDKIM Tag Tokenizer dkim.c dkim_process_set less trusted sourcevdb-entrytechnical-description
- VDB-411034 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-101277 | CVE Analysis and Reportthird-party-advisory
- Submit #918270 | The Trusted Domain Project OpenDKIM 2.11.0 Improper Input Validationthird-party-advisory
- https://xuyongzhe-vt.github.io/share/opendkim-tag-parser-desync.htmlexploit
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