CVE-2026-101277 - Trusted Domain Project OpenDKIM Tag Tokenizer dkim.c dkim_process_set less trusted source

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MEDIUM

Trusted Domain Project OpenDKIM Tag Tokenizer dkim.c dkim_process_set less trusted source

Published Sep 28, 2026

6.9

MEDIUM

CVSS 4.0

EPSS 0.19%

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.

Affected products

Vendor Trusted Domain Project Product OpenDKIM Default
n/a
- Version
  2.0
  Status
  affected
  Constraints
  -
- Version
  2.1
  Status
  affected
  Constraints
  -
- Version
  2.10
  Status
  affected
  Constraints
  -
- Version
  2.11.0
  Status
  affected
  Constraints
  -
- Version
  2.2
  Status
  affected
  Constraints
  -
- Version
  2.3
  Status
  affected
  Constraints
  -
- Version
  2.4
  Status
  affected
  Constraints
  -
- Version
  2.5
  Status
  affected
  Constraints
  -
- Version
  2.6
  Status
  affected
  Constraints
  -
- Version
  2.7
  Status
  affected
  Constraints
  -
- Version
  2.8
  Status
  affected
  Constraints
  -
- Version
  2.9
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Trusted Domain Project

OpenDKIM

n/a

Version	Status	Constraints
2.0	affected	-
2.1	affected	-
2.10	affected	-
2.11.0	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	-

Remediation

No remediation recorded yet.

Weaknesses (1)

CWE-348

References (6)

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-88584
Advisory
https://vuldb.com/cve/CVE-2026-101277
third-party-advisory
https://vuldb.com/submit/918270
third-party-advisory
https://vuldb.com/vuln/411034
vdb-entrytechnical-description
https://vuldb.com/vuln/411034/cti
signaturepermissions-required
https://xuyongzhe-vt.github.io/share/opendkim-tag-parser-desync.html
exploit

Link	Providers	Tags
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-88584		Advisory
https://vuldb.com/cve/CVE-2026-101277		third-party-advisory
https://vuldb.com/submit/918270		third-party-advisory
https://vuldb.com/vuln/411034		vdb-entrytechnical-description
https://vuldb.com/vuln/411034/cti		signaturepermissions-required
https://xuyongzhe-vt.github.io/share/opendkim-tag-parser-desync.html		exploit