CVE-2026-42256
1 advisory.
RubyGems/net-imap CVE-2026-42256: medium, EPSS 0.52%
net-imap vulnerable to denial of service via high iteration count for `SCRAM-*` authentication
Action: Upgrade net-imap to 0.4.24 or later.
bundle update net-imapAffected
| introduced | fixed | last affected |
|---|---|---|
| 0.6.0 | 0.6.4 | - |
| 0.5.0 | 0.5.14 | - |
| 0.4.0 | 0.4.24 | - |
Fixed versions
| 0.6.4 | 0.5.14 | 0.4.24 |
Sources
- osv: GHSA-87pf-fpwv-p7m7
- https://github.com/ruby/net-imap/security/advisories/GHSA-87pf-fpwv-p7m7
- https://nvd.nist.gov/vuln/detail/CVE-2026-42256
- https://github.com/ruby/net-imap/commit/158d0b505074397cdb5ceb58935e42dd2bcfa612
- https://github.com/ruby/net-imap/commit/808001bc45c06f7297a7e96d341279e041a7f7f4
- https://github.com/ruby/net-imap/commit/99f59eab6064955a23debd95410263ad144df758
- https://github.com/ruby/net-imap
- https://github.com/ruby/net-imap/releases/tag/v0.4.24
- https://github.com/ruby/net-imap/releases/tag/v0.5.14
- https://github.com/ruby/net-imap/releases/tag/v0.6.4
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/net-imap/CVE-2026-42256.yml
- https://www.rfc-editor.org/rfc/rfc7804.html#page-15
CVE-2026-42256 · published · modified · JSON