When a remote, unauthenticated HTTP/1.1 client pipelined the start of a second request and then stopped reading, proxygen's coroutine-based HTTP session could free that pipelined stream while resetting the connection's streams on the resulting write timeout, then go on to use it. This can crash the server, leading to denial of service, and may allow memory corruption with further impact. This issue affects proxygen versions prior to v2026.11.09.00.
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Affected Vendors & Products
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Fixes
Solution
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Workaround
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References
History
Wed, 11 Nov 2026 17:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | When a remote, unauthenticated HTTP/1.1 client pipelined the start of a second request and then stopped reading, proxygen's coroutine-based HTTP session could free that pipelined stream while resetting the connection's streams on the resulting write timeout, then go on to use it. This can crash the server, leading to denial of service, and may allow memory corruption with further impact. This issue affects proxygen versions prior to v2026.11.09.00. | |
| References |
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MITRE
Status: PUBLISHED
Assigner: Meta
Published:
Updated: 2026-11-11T16:55:44.734Z
Reserved: 2026-11-03T22:21:49.349Z
Link: CVE-2026-121737
Vulnrichment
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NVD
Status : Deferred
Published: 2026-11-11T17:17:17.337
Modified: 2026-11-11T17:17:17.430
Link: CVE-2026-121737
Redhat
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OpenCVE Enrichment
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Weaknesses
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