CVE detail
CVE-2026-42256
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.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 22.0 · diversity 10.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
8 source links · newest first
- CVE-2026-42256 net-imap: Denial of service via high iteration count for `SCRAM-*` authenticationMicrosoft MSRC
Information published.
vendormsrc.microsoft.comMay 11, 2026, 8:03 AM No excerpt available.
Exploitgithub.comMay 9, 2026, 8:16 PMNo excerpt available.
Exploitgithub.comMay 9, 2026, 8:16 PMNo excerpt available.
Exploitgithub.comMay 9, 2026, 8:16 PMNo excerpt available.
Exploitgithub.comMay 9, 2026, 8:16 PMNo excerpt available.
Exploitgithub.comMay 9, 2026, 8:16 PMNo excerpt available.
Exploitgithub.comMay 9, 2026, 8:16 PMNo excerpt available.
Exploitgithub.comMay 9, 2026, 8:16 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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