DEBIAN-CVE-2026-42246

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Source
https://security-tracker.debian.org/tracker/CVE-2026-42246
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42246.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-42246
Upstream
Published
2026-05-09T20:16:28Z
Modified
2026-09-14T17:03:12Z
Severity
  • 7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
[none]
Details

Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.3.10, 0.4.24, 0.5.14, and 0.6.4, a man-in-the-middle attacker can cause Net::IMAP#starttls to return "successfully", without starting TLS. This issue has been patched in versions 0.3.10, 0.4.24, 0.5.14, and 0.6.4.

References

Affected packages

Debian:12 / ruby3.1

Package

Name
ruby3.1
Purl
pkg:deb/debian/ruby3.1?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.1.2-7
3.1.2-7+deb12u1
3.1.2-7+hurd.1
3.1.2-8
3.1.2-8.1~exp1
3.1.2-8.3
3.1.2-8.4
3.1.2-8.5

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42246.json"

Debian:13 / ruby3.3

Package

Name
ruby3.3
Purl
pkg:deb/debian/ruby3.3?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.3.8-2
3.3.8-2.1
3.3.8-2.2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42246.json"

Debian:14 / ruby3.3

Package

Name
ruby3.3
Purl
pkg:deb/debian/ruby3.3?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.3.8-2
3.3.8-2.1
3.3.8-2.2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42246.json"