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Tracking
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| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-hmj8-5xmh-5573 | libp2p: yamux connection DoS via oversized data frame |
Thu, 13 Aug 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Thu, 13 Aug 2026 17:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | py-libp2p is the Python implementation of the libp2p networking stack. In 0.7.0 and earlier, the yamux handle_incoming() method in libp2p/stream_muxer/yamux/yamux.py reads an attacker-controlled 32-bit DATA frame length with read_exactly() before validating it against MAX_WINDOW_SIZE or checking whether stream_id exists. A peer that completes the standard Noise handshake can send a 12-byte frame declaring a 0xFFFFFFFF body and then withhold the body, causing the sequential yamux read loop used by the default new_host() configuration to block and preventing every stream on that connection from making progress. No fixed version is available as of this review. | |
| Title | py-libp2p: yamux connection DoS via oversized data frame | |
| Weaknesses | CWE-400 | |
| References |
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| Metrics |
cvssV3_1
|
Subscriptions
No data.
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-08-13T18:06:37.488Z
Reserved: 2026-08-12T20:53:46.381Z
Link: CVE-2026-73568
Updated: 2026-08-13T18:06:08.839Z
Status : Received
Published: 2026-08-13T18:18:19.547
Modified: 2026-08-13T19:17:35.323
Link: CVE-2026-73568
No data.
OpenCVE Enrichment
Updated: 2026-08-13T18:45:04Z
Github GHSA