CVE-2026-27820
CVE-2026-27820: 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 severityMedium5.6
Medium [CVE-2026-27820] Memory corruption via buffer overflow in Zlib::GzipReader
CVE-2026-27820Source published
Memory corruption via buffer overflow in Zlib::GzipReader. Red Hat rates this moderate (CVSS 5.6). Weakness: CWE-131. Affected package(s): ruby4, ruby3. Resolved in Red Hat advisory RHSA-2026:7307 — update the affected packages (`sudo dnf update`).
- Related products — impact not confirmed
- ruby4
- ruby3
- Red Hat Enterprise Linux
- Source-reported affected versions
- ruby4-0-main-4.0.0-33.3.hum1
- ruby3-4-main-3.4.8-31.1.hum1
- ruby3-3-main-3.3.10-23.1.hum1
- Source-reported fixed versions
- RHSA-2026:7307
- Mitigation guidance
- Update the affected package(s) to the fixed version shipped in RHSA-2026:7307 (`sudo dnf update` / `yum update`).
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