CVE-2026-48748

Summary

Netty is a network application framework for development of protocol servers and clients. 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.

Affected Software

Weaknesses

• CWE-770: CWE-770: Allocation of Resources Without Limits or Throttling

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

netty: Netty: Denial of Service due to memory exhaustion in HTTP/3 codec

Additional References

• https://access.redhat.com/security/cve/CVE-2026-48748
• https://bugzilla.redhat.com/show_bug.cgi?id=2488441
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48748.json

References

• https://github.com/netty/netty/security/advisories/GHSA-4grm-h2qv-h6w6
• https://github.com/netty/netty/releases/tag/netty-4.2.15.Final

• ←Previous
• Next→