CVE-2026-77473

The AsyncSSH Python package (prior to version 2.24.1 ) is vulnerable to a path traversal issue during recursive remote-to-local SFTP copies. The vulnerability exists in the SFTPClient._copy() function within asyncssh/sftp.py, which can be reached via get(), mget(), and copy(). Because the package...

CVE-2026-102643

The AsyncSSH Python package, which provides an asynchronous SSHv2 implementation, is vulnerable to a chroot bypass in versions prior to 2.24.1 . The root cause is located in SFTPServer.map_path(), where the application improperly handles paths starting with exactly two leading slashes. Because po...

MaccaroniC2

MaccaroniC2 - Empowering Command & Control using AsyncSSH MaccaroniC2 is a proof-of-concept Command and Control framework that utilizes the powerful AsyncSSH Python library which provides an asynchronous client and server implementation of the SSHv2 protocol and use PyNgrok wrapper for ngrok...

CLEANSTART-2026-OU74265 AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework

Security vulnerability affects the airflow-3 package. AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework...

CLEANSTART-2026-OB87528 AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework

Security vulnerability affects the airflow-3 package. AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework...

CLEANSTART-2026-OL63502 AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework

Security vulnerability affects the airflow-3 package. AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework...

CLEANSTART-2026-HU67174 AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework

Security vulnerability affects the airflow-3 package. AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework...

CLEANSTART-2026-VH35981 AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework

Security vulnerability affects the airflow-3 package. AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework...

pyplanet (>=0.6.0rc1, <=0.6.0) potentially affected by CVE-2026-62949 via asyncssh (1.12.2)

asyncssh PYPI version 1.12.2 is affected by a known vulnerability. The following packages have a transitive dependency on asyncssh and may be impacted: - pyplanet =0.6.0rc1, =0.6.0 Source cves: CVE-2026-62949 Source advisory: OSV:PYSEC-2026-4026...

aiida-core (>=2.7.0rc0, <=2.9.2), aiida-gromacs (2.2.2) +101 more potentially affected by CVE-2026-62949 via asyncssh (>=2.0.1, <=2.23.1)

asyncssh PYPI version =2.0.1, =2.7.0rc0, =0.4.1, =0.7.2, =1.2.7, =0.0.1, =1.5.0.dev202411111555, =1.44.2, =0.6.0, =1.7.3, =1.46.0, =0.0.2, =2.0.15, =2.1.8 and more Source cves: CVE-2026-62949 Source advisory: OSV:PYSEC-2026-4026...

pitcrew (>=0.0.1, <=0.0.3) potentially affected by CVE-2026-62949 via asyncssh (1.16.1)

asyncssh PYPI version 1.16.1 is affected by a known vulnerability. The following packages have a transitive dependency on asyncssh and may be impacted: - pitcrew =0.0.1, =0.0.3 Source cves: CVE-2026-62949 Source advisory: OSV:PYSEC-2026-4026...

pyplanet (>=0.5.0, <=0.5.2) potentially affected by CVE-2026-62949 via asyncssh (1.11.0)

asyncssh PYPI version 1.11.0 is affected by a known vulnerability. The following packages have a transitive dependency on asyncssh and may be impacted: - pyplanet =0.5.0, =0.5.2 Source cves: CVE-2026-62949 Source advisory: OSV:PYSEC-2026-4026...

PYSEC-2026-4026 AsyncSSH: asyncio event-loop freeze via SSH maximum packet size = 0 in SSH_MSG_CHANNEL_OPEN / OPEN_CONFIRMATION

Summary A malicious SSH server can wedge an AsyncSSH client, and an authenticated client can wedge an AsyncSSH server, by sending a channel maximum packet size of 0 in SSHMSGCHANNELOPENCONFIRMATION server→client or SSHMSGCHANNELOPEN client→server. AsyncSSH stores the peer-supplied value verbatim...

pyplanet (>=0.0.1, <=0.1.4) potentially affected by CVE-2026-62949 via asyncssh (1.9.0)

asyncssh PYPI version 1.9.0 is affected by a known vulnerability. The following packages have a transitive dependency on asyncssh and may be impacted: - pyplanet =0.0.1, =0.1.4 Source cves: CVE-2026-62949 Source advisory: OSV:PYSEC-2026-4026...

aioasuswrt (>=1.1.20, <=1.1.21) potentially affected by CVE-2026-62949 via asyncssh (1.15.0)

asyncssh PYPI version 1.15.0 is affected by a known vulnerability. The following packages have a transitive dependency on asyncssh and may be impacted: - aioasuswrt =1.1.20, =1.1.21 Source cves: CVE-2026-62949 Source advisory: OSV:PYSEC-2026-4026...

pyplanet (0.6.1a1) potentially affected by CVE-2026-62949 via asyncssh (1.13.2)

asyncssh PYPI version 1.13.2 is affected by a known vulnerability. The following packages have a transitive dependency on asyncssh and may be impacted: - pyplanet 0.6.1a1 Source cves: CVE-2026-62949 Source advisory: OSV:PYSEC-2026-4026...

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

SummaryA malicious SSH server can wedge an AsyncSSH client, and an authenticatedclient can wedge an AsyncSSH server, by sending a channel maximum packetsize of 0 in SSHMSGCHANNELOPENCONFIRMATION server→client orSSHMSGCHANNELOPEN client→server. AsyncSSH stores the peer-supplied valueverbatim with ...

pyplanet (>=0.1.5, <=0.3.3) potentially affected by CVE-2026-62949 via asyncssh (1.10.0)

asyncssh PYPI version 1.10.0 is affected by a known vulnerability. The following packages have a transitive dependency on asyncssh and may be impacted: - pyplanet =0.1.5, =0.3.3 Source cves: CVE-2026-62949 Source advisory: OSV:PYSEC-2026-4026...

netdev (>=0.9.1, <=0.9.3), pyplanet (>=0.7.0rc1, <=0.11.12) +2 more potentially affected by CVE-2026-62949 via asyncssh (1.18.0)

asyncssh PYPI version 1.18.0 is affected by a known vulnerability. The following packages have a transitive dependency on asyncssh and may be impacted: - netdev =0.9.1, =0.7.0rc1, =0.0.1, =0.2.1 Source cves: CVE-2026-62949 Source advisory: OSV:PYSEC-2026-4026...

pyplanet (>=0.5.3, <=0.5.4) potentially affected by CVE-2026-62949 via asyncssh (1.11.1)

asyncssh PYPI version 1.11.1 is affected by a known vulnerability. The following packages have a transitive dependency on asyncssh and may be impacted: - pyplanet =0.5.3, =0.5.4 Source cves: CVE-2026-62949 Source advisory: OSV:PYSEC-2026-4026...