High [CVE-2026-105482] dns.resolve truncates hostnames containing a NUL character
This high-severity Red Hat Linux advisory covers CVE-2026-105482; related products: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9.
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Summary
dns.resolve truncates hostnames containing a NUL character. Red Hat rates this important (CVSS 7.4).
Weakness: CWE-158.
Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat package: nodejs22; and 2 more.
Affected products named by the advisory: Red Hat package: nodejs24; Red Hat package: nodejs26.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.
Official advisory · high-confidence parse· fetched 4 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 4 days ago·verify at source
Mitigation checklist
- To mitigate, do not pass untrusted strings into dns.resolve; reject hostnames that contain embedded NUL bytes before DNS resolution. Limit which components may perform DNS lookups on attacker-influenced names, and restrict network reachability of those services.
Official advisory · high-confidence parse· fetched 4 days ago·verify at source
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