CVE-2026-2291
CVE-2026-2291: 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 severityMedium6.5
Medium [CVE-2026-2291] heap buffer overflow in cache via NAME_ESCAPE expansion
CVE-2026-2291Source published
heap buffer overflow in cache via NAME_ESCAPE expansion. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-131. Affected package(s): dnsmasq. Resolved in Red Hat advisory RHSA-2026:20589 — update the affected packages (`sudo dnf update`).
- Related products — impact not confirmed
- Red Hat Enterprise Linux 9
- Red Hat Enterprise Linux 1
- Red Hat Enterprise Linux 8
- dnsmasq
- Source-reported affected versions
- dnsmasq-0:2.85-17.el9_6.1
- dnsmasq-0:2.90-7.el10_2
- dnsmasq-0:2.85-18.el9_8.1
- dnsmasq-0:2.79-36.el8_10
- Source-reported fixed versions
- RHSA-2026:20589
- Mitigation guidance
- Update the affected package(s) to the fixed version shipped in RHSA-2026:20589 (`sudo dnf update` / `yum update`).
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