Advisory severityCritical9.8Red Hat Linux

Critical [CVE-2026-94083] type confusion and invalid free in DoH2 protocol handling

This critical-severity Red Hat Linux advisory covers CVE-2026-94083.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-94083 Source published Sep 20, 2026Source updated Sep 20, 2026

VulniPulse record published Oct 3, 2026Record updated Oct 3, 2026

CVE-2026-94083

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Summary

type confusion and invalid free in DoH2 protocol handling. Red Hat rates this critical (CVSS 9.8).

Weakness: CWE-843.

Affected versions

< 8.0.7

Official advisory · high-confidence parse· fetched 3 days ago·verify at source

Fixed versions

No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.

Official advisory · high-confidence parse· fetched 3 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Disable the DNS over HTTPS 2 protocol handler by setting `app-layer.protocols.doh2.enabled: false` in `/etc/suricata/suricata.yaml` and restart the Suricata service.

Official advisory · high-confidence parse· fetched 3 days ago·verify at source

Discussion(0)

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