A AegiFlow
MEDIUMCVSS 6.5

CVE-2019-9516

CVE-2019-9516 updated by NVD

Modified
2026-09-20
Sources
nvd

Summary

Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service. The attacker sends a stream of headers with a 0-length header name and 0-length header value, optionally Huffman encoded into 1-byte or greater headers. Some implementations allocate memory for these headers and keep the allocation alive until the session dies. This can consume excess memory.

Affected packages

EcosystemPackageAffected versionsFixed versions
Node.jsnode.js[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.

CVE® is a registered trademark of The MITRE Corporation. CVE content reproduced under the CVE Terms of Use; copyright designation © MITRE.