A AegiFlow
HIGHCVSS 7.5

CVE-2019-9518

CVE-2019-9518 updated by NVD

Modified
2026-09-20
Sources
nvd

Summary

Some HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service. The attacker sends a stream of frames with an empty payload and without the end-of-stream flag. These frames can be DATA, HEADERS, CONTINUATION and/or PUSH_PROMISE. The peer spends time processing each frame disproportionate to attack bandwidth. This can consume excess CPU.

Affected packages

EcosystemPackageAffected versionsFixed versions
Node.jsnode.js[object Object], [object Object], [object Object], [object Object], [object Object]

References

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

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