CVE-2026-101277Trusted Domain Project OpenDKIM Tag Tokenizer dkim.c dkim_process_set less trusted source
Updated under an hour ago ()
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It affects Trusted Domain Project OpenDKIM. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)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
- Weakness (CWE)
- CWE-348
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- Sep 29, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Trusted Domain Project OpenDKIM trusted_domain_project:opendkim | 2.0; 2.1; 2.2; 2.3; 2.4; 2.5; 2.6; 2.7; and 4 more ranges | CNA record |
References
- https://vuldb.com/vuln/411034vdb-entry, technical-description
- https://vuldb.com/vuln/411034/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2026-101277third-party-advisory
- https://vuldb.com/submit/918270third-party-advisory
- https://xuyongzhe-vt.github.io/share/opendkim-tag-parser-desync.htmlexploit
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.