This fix provides extra hardening for the 5.4.x branch by doing extra validation of incoming answers from authoritative servers.
Review the upstream advisory, identify the affected product in your inventory, and apply the vendor update when one is available.
CVE-2026-42389 is listed in the HOL Guard supply-chain feed, but affected software is not mapped to a package. Review the upstream advisory for the affected product and vendor guidance. This fix provides extra hardening for the 5.4.x branch by doing extra validation of incoming answers from authoritative servers.
Affected software not mapped. Review the upstream record for vendor-specific product and version guidance.
This fix provides extra hardening for the 5.4.x branch by doing extra validation of incoming answers from authoritative servers.
Review the upstream advisory, identify the affected product in your inventory, and apply the vendor update when one is available.
CVE-2026-42389 is listed in the HOL Guard supply-chain feed, but affected software is not mapped to a package. Review the upstream advisory for the affected product and vendor guidance. This fix provides extra hardening for the 5.4.x branch by doing extra validation of incoming answers from authoritative servers.
Affected software not mapped. Review the upstream record for vendor-specific product and version guidance.
Reported by NVD (nvd).
HOL Guard can help your team monitor supply-chain activity while the upstream record is clarified.
Explore HOL GuardReported by NVD (nvd).
HOL Guard can help your team monitor supply-chain activity while the upstream record is clarified.
Explore HOL Guard