High [CVE-2026-56846] Remote memory exhaustion via HTTP/2 retained header blocks
This high-severity Red Hat Linux advisory covers CVE-2026-56846.
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Summary
Remote memory exhaustion via HTTP/2 retained header blocks. Red Hat rates this important (CVSS 7.5).
Weakness: CWE-400. Red Hat lists fixing advisory RHSA-2026:48305 with package nodejs22-main-22.23.2-2.3.hum1, nodejs24-main-24.18.1-0.1.hum1.
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 2 hours ago·verify at source
- nodejs22-main-22.23.2-2.3.hum1
- nodejs24-main-24.18.1-0.1.hum1
- RHSA-2026:48305
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation
Upgrade to a fixed release: nodejs22-main-22.23.2-2.3.hum1, nodejs24-main-24.18.1-0.1.hum1, RHSA-2026:48305. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Discussion(0)
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