Improper certificate validation in offlineimap
Priority MEDIUM 44CWE-295Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-295.
Summary
offlineimap before 6.3.4 added support for SSL server certificate validation but it is still possible to use SSL v2 protocol, which is a flawed protocol with multiple security deficiencies.
Why it matters now
EPSS 0.01033 64th percentileScored 2026-11-07
Fix Fixed offlineimap (offlineimap): 6.3.4
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 |
|---|---|---|---|---|---|
| offlineimap | offlineimap | before 6.3.4 | 6.3.4 | Patch available | CNA |
- offlineimap Vendorofflineimap Affected before 6.3.4 Fixed in 6.3.4 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
| cpe:2.3:a:offlineimap:offlineimap:*:*:*:*:*:*:*:* | before 6.3.4 | Vulnerable | offlineimap |
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
- cpe:2.3:a:offlineimap:offlineimap:*:*:*:*:*:*:*:* Versions before 6.3.4 Vulnerable ·offlineimap
Remediation
- Fix · CNA offlineimap (offlineimap) Fixed in 6.3.4
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2010-4533
- 2026-10-03 Alias added: GHSA-j6qj-vq58-68qh
References
Advisory 3
More Offlineimap vulnerabilities
- TI-2010-04262 Improper certificate validation in offlineimap CVSS 3.1MEDIUM 5.9
Sources
- CVE-2010-4533 · CVE Program
- CVE-2010-4533 · NVD
- FIRST EPSS
- GHSA-j6qj-vq58-68qh · GitHub Advisory Database · CC BY 4.0
- CVE-2010-4533 · 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