CVE-2026-42246
7.4 ÉlevéeDescription
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.
Produits concernés
- ruby net-imap
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 10.0 Extended Update Support
- Red Hat Enterprise Linux 7 Extended Lifecycle Support
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
- Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
- Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
- Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On
- Red Hat Enterprise Linux 8.8 Telecommunications Update Service
- Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
- Red Hat Enterprise Linux 9
- Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
- Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions
- Red Hat Enterprise Linux 9.6 Extended Update Support
- Red Hat Hardened Images
- Red Hat 3scale API Management Platform 2
- Red Hat Enterprise Linux 6
- Red Hat OpenShift Container Platform 4
- Ruby-lang net\
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 4.0 | 7.6 Élevée | security-advisories@github.com | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| 3.1 | 7.4 Élevée | nvd@nist.gov (NVD) | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
| 3.1 | 7.4 Élevée | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
Faiblesses (CWE)
Références
- https://github.com/ruby/net-imap/commit/0ede4c40b1523dfeaf95777b2678e54cc0fd9618 Patch
- https://github.com/ruby/net-imap/commit/24a4e770b43230286a05aa2a9746cdbb3eb8485e Patch
- https://github.com/ruby/net-imap/commit/97e2488fb5401a1783bddd959dde007d9fbce42c Patch
- https://github.com/ruby/net-imap/commit/f79d35bf5833f186e81044c57c843eda30c873da Patch
- https://github.com/ruby/net-imap/releases/tag/v0.3.10 Release Notes
- https://github.com/ruby/net-imap/releases/tag/v0.4.24 Release Notes
- https://github.com/ruby/net-imap/releases/tag/v0.5.14 Release Notes
- https://github.com/ruby/net-imap/security/advisories/GHSA-vcgp-9326-pqcp MitigationVendor Advisory
- https://access.redhat.com/errata/RHSA-2026:33462
- https://access.redhat.com/errata/RHSA-2026:33512
- https://access.redhat.com/errata/RHSA-2026:33514
- https://access.redhat.com/errata/RHSA-2026:33515
- https://access.redhat.com/errata/RHSA-2026:33540
- https://access.redhat.com/errata/RHSA-2026:33551
- https://access.redhat.com/errata/RHSA-2026:33552
- https://access.redhat.com/errata/RHSA-2026:33565
- https://access.redhat.com/errata/RHSA-2026:33576
- https://access.redhat.com/errata/RHSA-2026:33577
- https://access.redhat.com/errata/RHSA-2026:33630
- https://access.redhat.com/errata/RHSA-2026:33721
- https://access.redhat.com/errata/RHSA-2026:34076
- https://access.redhat.com/errata/RHSA-2026:35834
- https://access.redhat.com/errata/RHSA-2026:35866
- https://access.redhat.com/errata/RHSA-2026:35867
- https://access.redhat.com/errata/RHSA-2026:35895
- https://access.redhat.com/errata/RHSA-2026:36099
- https://access.redhat.com/errata/RHSA-2026:37238
- https://access.redhat.com/errata/RHSA-2026:37397
- https://access.redhat.com/security/cve/CVE-2026-42246
- https://bugzilla.redhat.com/show_bug.cgi?id=2468499
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42246.json