# asyncssh (PyPI) vulnerabilities Source: https://junglewise.ai/threats/technologies/pypi-asyncssh Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/pypi-asyncssh.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 8 vulnerabilities in asyncssh (PyPI): 0 in the last 7 days and 1 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-62949, was published on 16 September 2026. Nothing in the last four weeks, down from 1 vulnerability in the four before. ## Counts - Last 7 days: 0 - Last 30 days: 0 - Last 90 days: 1 - All time: 8 (0 critical, 0 exploited in the wild) ## About asyncssh (PyPI) Python library for SSH client and server protocol implementation. ## Latest asyncssh (PyPI) vulnerabilities - [CVE-2026-62949: AsyncSSH event-loop infinite loop via zero maximum packet size](https://junglewise.ai/threats/cve-2026-62949-asyncssh-event-loop-infinite-loop-via-zero-maximum-packet-size) (medium, CVSS 6.5, published 16 Sep 2026) - [CVE-2026-45309: ronf AsyncSSH path traversal in AuthorizedKeysFile](https://junglewise.ai/threats/cve-2026-45309-ronf-asyncssh-path-traversal-in-authorizedkeysfile) (medium, CVSS 4, published 17 Jul 2026) - [CVE-2026-54591: AsyncSSH path traversal in SCP client](https://junglewise.ai/threats/cve-2026-54591-asyncssh-path-traversal-in-scp-client) (high, CVSS 8.1, published 8 Jul 2026) - [CVE-2026-54590: ronf AsyncSSH path traversal in AuthorizedKeysFile username substitution](https://junglewise.ai/threats/cve-2026-54590-ronf-asyncssh-path-traversal-in-authorizedkeysfile-username) (medium, CVSS 5.9, published 8 Jul 2026) - [AsyncSSH vulnerable to Prefix Truncation Attack (a.k.a. Terrapin Attack) against ChaCha20-Poly1305 and Encrypt-then-MAC](https://junglewise.ai/threats/asyncssh-vulnerable-to-prefix-truncation-attack-a-k-a-terrapin-attack-70e933b5) (low, CVSS 3.1, published 18 Dec 2023) - [CVE-2023-46446: AsyncSSH Rogue Session Attack](https://junglewise.ai/threats/cve-2023-46446-asyncssh-rogue-session-attack) (low, CVSS 3.1, published 14 Nov 2023) - [CVE-2023-46445: PYSEC-2023-237 - An issue in AsyncSSH v2.14.0 and earlier allows attackers to control the extension info message (RFC…](https://junglewise.ai/threats/cve-2023-46445-asyncssh-rogue-extension-negotiation) (low, CVSS 3.1, published 14 Nov 2023) - [CVE-2018-7749: AsyncSSH SSH Server Authentication Bypass](https://junglewise.ai/threats/cve-2018-7749-asyncssh-ssh-server-authentication-bypass) (low, CVSS 3.1, published 12 Mar 2018) ## Most severe asyncssh (PyPI) vulnerabilities - [CVE-2026-54591: AsyncSSH path traversal in SCP client](https://junglewise.ai/threats/cve-2026-54591-asyncssh-path-traversal-in-scp-client) (high, CVSS 8.1, published 8 Jul 2026) - [CVE-2026-62949: AsyncSSH event-loop infinite loop via zero maximum packet size](https://junglewise.ai/threats/cve-2026-62949-asyncssh-event-loop-infinite-loop-via-zero-maximum-packet-size) (medium, CVSS 6.5, published 16 Sep 2026) - [CVE-2026-54590: ronf AsyncSSH path traversal in AuthorizedKeysFile username substitution](https://junglewise.ai/threats/cve-2026-54590-ronf-asyncssh-path-traversal-in-authorizedkeysfile-username) (medium, CVSS 5.9, published 8 Jul 2026) - [CVE-2026-45309: ronf AsyncSSH path traversal in AuthorizedKeysFile](https://junglewise.ai/threats/cve-2026-45309-ronf-asyncssh-path-traversal-in-authorizedkeysfile) (medium, CVSS 4, published 17 Jul 2026) - [CVE-2018-7749: AsyncSSH SSH Server Authentication Bypass](https://junglewise.ai/threats/cve-2018-7749-asyncssh-ssh-server-authentication-bypass) (low, CVSS 3.1, published 12 Mar 2018) - [CVE-2023-46446: AsyncSSH Rogue Session Attack](https://junglewise.ai/threats/cve-2023-46446-asyncssh-rogue-session-attack) (low, CVSS 3.1, published 14 Nov 2023) - [CVE-2023-46445: PYSEC-2023-237 - An issue in AsyncSSH v2.14.0 and earlier allows attackers to control the extension info message (RFC…](https://junglewise.ai/threats/cve-2023-46445-asyncssh-rogue-extension-negotiation) (low, CVSS 3.1, published 14 Nov 2023) - [AsyncSSH vulnerable to Prefix Truncation Attack (a.k.a. Terrapin Attack) against ChaCha20-Poly1305 and Encrypt-then-MAC](https://junglewise.ai/threats/asyncssh-vulnerable-to-prefix-truncation-attack-a-k-a-terrapin-attack-70e933b5) (low, CVSS 3.1, published 18 Dec 2023) ## Vulnerabilities per week Nothing in the last four weeks, down from 1 vulnerability in the four before. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 1 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other PyPI technologies - [tensorflow (PyPI)](https://junglewise.ai/threats/technologies/pypi-tensorflow): 435 vulnerabilities - [tensorflow-cpu (PyPI)](https://junglewise.ai/threats/technologies/tensorflow-cpu): 430 vulnerabilities - [tensorflow-gpu (PyPI)](https://junglewise.ai/threats/technologies/tensorflow-gpu): 427 vulnerabilities - [open-webui (PyPI)](https://junglewise.ai/threats/technologies/open-webui): 177 vulnerabilities - [Django (PyPI)](https://junglewise.ai/threats/technologies/django): 173 vulnerabilities - [apache-airflow (PyPI)](https://junglewise.ai/threats/technologies/apache-airflow): 159 vulnerabilities - [pillow (PyPI)](https://junglewise.ai/threats/technologies/pillow): 125 vulnerabilities - [praisonai (PyPI)](https://junglewise.ai/threats/technologies/pypi-praisonai): 120 vulnerabilities - [vllm (PyPI)](https://junglewise.ai/threats/technologies/pypi-vllm): 117 vulnerabilities - [plone (PyPI)](https://junglewise.ai/threats/technologies/pypi-plone): 101 vulnerabilities - [mlflow (PyPI)](https://junglewise.ai/threats/technologies/mlflow): 88 vulnerabilities - [picklescan (PyPI)](https://junglewise.ai/threats/technologies/picklescan): 86 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "asyncssh (PyPI) vulnerabilities", https://junglewise.ai/threats/technologies/pypi-asyncssh, 13 November 2026.