CVE-2026-119234

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-119234
StatePUBLISHED
AssignerMeta
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-11 17:17:16 UTC
Updated2026-11-11 17:17:16 UTC
Descriptionmvfst did not adequately merge or compact out-of-order STREAM frame data, and a small received fragment could keep a much larger receive buffer alive. QUIC flow control limits the number of buffered stream bytes, but not this per-fragment memory and bookkeeping. A remote, unauthenticated QUIC peer could send many small, non-contiguous stream fragments to make an endpoint consume memory far in excess of its advertised receive window and spend increasing CPU time reassembling stream data, leading to denial of service. This issue affects mvfst versions prior to v2026.11.09.0.

Risk And Classification

Problem Types: Allocation of Resources Without Limits or Throttling (CWE-770)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Facebook Mvfst affected v0.0.0.0 v2026.11.09.0 semver Not specified

References

ReferenceSourceLinkTags
github.com/meta/mvfst/commit/7e5cff58e8cbed87793141ceeca0a8a343c67c44 [email protected] github.com
www.facebook.com/security/advisories/cve-2026-119234 [email protected] www.facebook.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report