CVE-2026-4371
CVE-2026-4371: 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 severityHigh8.2
High [CVE-2026-4371] Out of bounds read in IMAP parsing
CVE-2026-4371Source published
Out of bounds read in IMAP parsing. Red Hat rates this important (CVSS 8.2). Weakness: CWE-130. Affected package(s): thunderbird. Resolved in Red Hat advisory RHSA-2026:8286 — 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 8.2 Advanced Update 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
9 more entries in the full advisory.
- Source-reported affected versions
- thunderbird-0:140.9.0-1.el8_2
- thunderbird-0:140.9.0-1.el9_0
- thunderbird-0:140.9.0-1.el8_4
- thunderbird-0:140.9.0-1.el9_2
8 more entries in the full advisory.
- Source-reported fixed versions
- RHSA-2026:8286
- Mitigation guidance
- Update the affected package(s) to the fixed version shipped in RHSA-2026:8286 (`sudo dnf update` / `yum update`).
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