CVE-2026-48748: Netty HTTP/3 QPACK Blocked Streams Memory Exhaustion
(updated )
A memory exhaustion vulnerability in the Netty HTTP/3 codec allows the creation of an infinite number of blocked streams, which can cause OOM error.
References
- access.redhat.com/security/cve/CVE-2026-48748
- bugzilla.redhat.com/show_bug.cgi?id=2488441
- github.com/advisories/GHSA-4grm-h2qv-h6w6
- github.com/netty/netty/commit/75127cab731ee35068d1f0667bffa188bc332f5d
- github.com/netty/netty/releases/tag/netty-4.2.15.Final
- github.com/netty/netty/security/advisories/GHSA-4grm-h2qv-h6w6
- nvd.nist.gov/vuln/detail/CVE-2026-48748
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48748.json
Code Behaviors & Features
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