cve.bz

CVE-2026-48748

7.5 highEPSS 0.4%

High (7.5) in netty netty. EPSS 0.4% chance of exploitation in the next 30 days. Fixed in io.netty:netty-codec-http3 4.2.15.Final.

Netty is a network application framework for development of protocol servers and clients. Starting in version 4.2.0.Final and prior to version 4.2.15.Final, 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. Version 4.2.15.Final patches the issue.

Severity

CVSS 3.1

7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
0.4% chance of exploitation in the next 30 days; higher than 33% of CVEs (scores of 2026-10-31)
CWE
CWE-770
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-4grm-h2qv-h6w6Mavenio.netty:netty-codec-http3>=4.2.0.Final <4.2.15.Final4.2.15.Final

References

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