Analysis
Analysis and contextual insights are available on OpenCVE Cloud.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| mvfst | unaffected |
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Tracking
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Thu, 12 Nov 2026 12:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Denial of Service via Out-of-Order Stream Fragmentation in Facebook mvfst | |
| Weaknesses | CWE-399 CWE-770 |
Wed, 11 Nov 2026 17:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | mvfst 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. | |
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Subscriptions
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MITRE
Status: PUBLISHED
Assigner: Meta
Published:
Updated: 2026-11-11T16:54:48.304Z
Reserved: 2026-10-29T17:01:32.523Z
Link: CVE-2026-119234
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-11-11T17:17:16.543
Modified: 2026-11-11T17:17:16.543
Link: CVE-2026-119234
Redhat
No data.
OpenCVE Enrichment
Updated: 2026-11-12T11:45:02Z