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CVE-2026-62949 AsyncSSH: asyncio event-loop freeze via SSH maximum packet size = 0 in SSH_MSG_CHANNEL_OPEN / OPEN_CONFIRMATION

🗓️ 16 Sep 2026 20:00:46Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 54 Views

AsyncSSH pre-2.24.0 event-loop freeze via zero send_pktsize in channel open messages.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
alpinelinux
AlpineLinux
CVE-2026-62949
16 Sep 202620:00
–alpinelinux
cve
CVE
CVE-2026-62949
16 Sep 202620:00
–cve
debiancve
Debian CVE
CVE-2026-62949
16 Sep 202620:00
–debiancve
euvd
EUVD
EUVD-2026-81093
17 Sep 202614:53
–euvd
github
Github Security Blog
AsyncSSH: asyncio event-loop freeze via SSH maximum packet size = 0 in SSH_MSG_CHANNEL_OPEN / OPEN_CONFIRMATION
17 Sep 202614:53
–github
mend
Mend
CVE-2026-62949
16 Sep 202620:00
–mend
nvd
NVD
CVE-2026-62949
16 Sep 202620:17
–nvd
nessus
Tenable Nessus
openSUSE 16 Security Update : python-asyncssh (openSUSE-SU-2026:21953-1)
26 Sep 202600:00
–nessus
nessus
Tenable Nessus
Linux Distros Unpatched Vulnerability : CVE-2026-62949
18 Sep 202600:00
–nessus
osv_cga
osv_cga
CGA-7RPR-3CXX-78Q7
17 Sep 202615:44
–osv_cga
Rows per page
[
  {
    "vendor": "ronf",
    "product": "asyncssh",
    "versions": [
      {
        "version": "< 2.24.0",
        "status": "affected"
      }
    ]
  }
]

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16 Sep 2026 20:00Current
CVSS 3.16.5
EPSS0.00389
SSVC
54