Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. From versions 0.4.0 to before 0.4.24, 0.5.0 to before 0.5.14, and 0.6.0 to before 0.6.4, when authenticating a connection with SCRAM-SHA1 or SCRAM-SHA256, a hostile server can perform a computational denial-of-service attack on the client process by sending a big iteration count value. This issue has been patched in versions 0.4.24, 0.5.14, and 0.6.4.
References
Configurations
Configuration 1 (hide)
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History
18 May 2026, 18:06
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Ruby-lang net\
Ruby-lang |
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| CPE | cpe:2.3:a:ruby-lang:net\:\:imap:*:*:*:*:*:ruby:*:* | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 6.5 |
| References | () https://github.com/ruby/net-imap/commit/158d0b505074397cdb5ceb58935e42dd2bcfa612 - Patch | |
| References | () https://github.com/ruby/net-imap/commit/808001bc45c06f7297a7e96d341279e041a7f7f4 - Patch | |
| References | () https://github.com/ruby/net-imap/commit/99f59eab6064955a23debd95410263ad144df758 - Patch | |
| References | () https://github.com/ruby/net-imap/releases/tag/v0.4.24 - Release Notes | |
| References | () https://github.com/ruby/net-imap/releases/tag/v0.5.14 - Release Notes | |
| References | () https://github.com/ruby/net-imap/releases/tag/v0.6.4 - Release Notes | |
| References | () https://github.com/ruby/net-imap/security/advisories/GHSA-87pf-fpwv-p7m7 - Mitigation, Vendor Advisory |
09 May 2026, 20:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-09 20:16
Updated : 2026-05-18 18:06
NVD link : CVE-2026-42256
Mitre link : CVE-2026-42256
CVE.ORG link : CVE-2026-42256
JSON object : View
Products Affected
ruby-lang
- net\