An authenticated SSH client that repeatedly opened channels which were rejected by the server caused unbounded memory growth, eventually crashing the server process and affecting all connected users. Rejected channels are now properly removed from the connection's internal state and released for garbage collection.
Metrics
Affected Vendors & Products
References
History
Fri, 22 May 2026 20:15:00 +0000
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| Metrics |
cvssV3_1
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Fri, 22 May 2026 13:15:00 +0000
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| First Time appeared |
Golang
Golang ssh |
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| Vendors & Products |
Golang
Golang ssh |
Fri, 22 May 2026 03:30:00 +0000
| Type | Values Removed | Values Added |
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| Description | An authenticated SSH client that repeatedly opened channels which were rejected by the server caused unbounded memory growth, eventually crashing the server process and affecting all connected users. Rejected channels are now properly removed from the connection's internal state and released for garbage collection. | |
| Title | Invoking memory leak when rejecting channels can lead to DoS in golang.org/x/crypto/ssh | |
| References |
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Status: PUBLISHED
Assigner: Go
Published:
Updated: 2026-05-22T18:35:40.472Z
Reserved: 2026-04-07T18:13:03.528Z
Link: CVE-2026-39827
Updated: 2026-05-22T18:35:26.295Z
Status : Received
Published: 2026-05-22T04:16:21.497
Modified: 2026-05-22T04:16:21.497
Link: CVE-2026-39827
No data.
OpenCVE Enrichment
Updated: 2026-05-22T22:00:12Z