CVE-2026-101277 (GCVE-0-2026-101277)

Vulnerability from cvelistv5 – Published: 2026-09-28 23:45 – Updated: 2026-09-28 23:45
VLAI
Title
Trusted Domain Project OpenDKIM Tag Tokenizer dkim.c dkim_process_set less trusted source
Summary
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.
Severity
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
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
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
CWE
  • CWE-348 - Use of Less Trusted Source
Assigner
References
URL Tags
https://vuldb.com/vuln/411034 vdb-entrytechnical-description
https://vuldb.com/vuln/411034/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-101277 third-party-advisory
https://vuldb.com/submit/918270 third-party-advisory
https://xuyongzhe-vt.github.io/share/opendkim-tag… exploit
Impacted products
Vendor Product Version CPE status
Trusted Domain Project OpenDKIM Affected: 2.0
Affected: 2.1
Affected: 2.2
Affected: 2.3
Affected: 2.4
Affected: 2.5
Affected: 2.6
Affected: 2.7
Affected: 2.8
Affected: 2.9
Affected: 2.10
Affected: 2.11.0
    cpe:2.3:a:trusted_domain_project:opendkim:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
yongzhe_xu (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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            "cpe:2.3:a:trusted_domain_project:opendkim:*:*:*:*:*:*:*:*"
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    "dateReserved": "2026-09-28T11:52:35.710Z",
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      "cve": "CVE-2026-101277",
      "id": "CVE-2026-101277",
      "initial_release_date": "2026-09-28T23:45:15.490000+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "opendkim: Trusted Domain Project OpenDKIM Tag Tokenizer dkim.c dkim_process_set less trusted source",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-101277.json",
      "version": "3"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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