CVE-2026-100889

Trusted Domain Project OpenDKIM Decoder util.c dkim_qp_decode off-by-one

State
Published
Severity
6.9 Medium
Published
Sep 27, 2026
Updated
Sep 28, 2026
Reserved
Sep 27, 2026

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Description

A vulnerability was detected in Trusted Domain Project OpenDKIM up to 2.11.0. Affected is the function dkim_qp_decode of the file util.c of the component Decoder. The manipulation results in off-by-one. The attack may be performed from remote. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Scores

CVSSScoreVectorSource
4.06.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:PVulDB
3.17.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:CVulDB
3.07.3 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:CVulDB
2.07.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:CVulDB

Weaknesses

Affected Products

ProductVersions
OpenDKIMTrusted Domain Project
  • 2.0Affected
  • 2.1Affected
  • 2.2Affected
  • 2.3Affected
  • 2.4Affected
  • 2.5Affected
  • 2.6Affected
  • 2.7Affected
  • 2.8Affected
  • 2.9Affected
  • 2.10Affected
  • 2.11.0Affected

References

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