CVE-2026-42258
CVE-2026-42258: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityHigh7.1
High [CVE-2026-42258] Net::IMAP: IMAP Command Injection via Symbol Arguments
CVE-2026-42258Source published
Net::IMAP: IMAP Command Injection via Symbol Arguments. Red Hat rates this important (CVSS 7.1). Weakness: CWE-93. Affected package(s): ruby, ruby4.0, ruby:3.3, ruby:2.5, ruby:4.0. Resolved in Red Hat advisory RHSA-2026:33514 — update the affected packages (`sudo dnf update`).
- Affected products in this advisory
- Red Hat Enterprise Linux 10.0 Extended Update Support
- Red Hat Enterprise Linux 7 Extended Lifecycle Support
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
- Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
10 more entries in the full advisory.
- Source-reported affected versions
- ruby-0:3.0.7-162.el9_4.3
- ruby-0:3.0.7-167.el9_8
- ruby4.0-0:4.0.3-35.el10_2
- ruby:3.3-8100020260615131010.489197e6
8 more entries in the full advisory.
- Source-reported fixed versions
- RHSA-2026:33514
- Mitigation guidance
- Update the affected package(s) to the fixed version shipped in RHSA-2026:33514 (`sudo dnf update` / `yum update`).
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