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CVE-2026-42245

net-imap: Quadratic complexity when reading response literals PUBLISHED

Description (CNA)

Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.4.24, 0.5.14, and 0.6.4, Net::IMAP::ResponseReader has quadratic time complexity when reading large responses containing many string literals. A hostile server can send responses which are crafted to exhaust the client's CPU for a denial of service attack. This issue has been patched in versions 0.4.24, 0.5.14, and 0.6.4.

Affected (CNA)

Vendor / productVersions
ruby / net-imapaffected < 0.4.24; affected >= 0.5.0, < 0.5.14; affected >= 0.6.0, < 0.6.4

CWE

CWE-407

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.