The test suite in libopendkim in OpenDKIM through 2.10.3 allows local users to gain…
Priority LOW 35CWE-59Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
The test suite in libopendkim in OpenDKIM through 2.10.3 allows local users to gain privileges via a symlink attack against the /tmp/testkeys file (related to t-testdata.h, t-setup.c, and t-cleanup.c). NOTE: this is applicable to persons who choose to engage in the "A number of self-test programs are included here for unit-testing the library" situation.
Why it matters now
EPSS 0.00522 44th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2020-35766
- 2026-10-03 Alias added: GHSA-q8qf-8pcx-vfw7
References
More Opendkim vulnerabilities
- TI-2022-24099 An issue was discovered in OpenDKIM through 2.10.3, and 2.11.x through 2.11.0-Beta2. CVSS 3.1MEDIUM 5.3
Sources
- CVE-2020-35766 · CVE Program
- CVE-2020-35766 · NVD
- FIRST EPSS
- GHSA-q8qf-8pcx-vfw7 · GitHub Advisory Database · CC BY 4.0
- CVE-2020-35766 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences