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AsyncSSH `AuthorizedKeysFile %u` path traversal allows attacker-selected authorized keys to authenticate a traversal username

🗓️ 27 May 2026 21:35:06Reported by GitHub Advisory DatabaseType 
github
 github🔗 github.com👁 20 Views

AsyncSSH 2.22.0 expands AuthorizedKeysFile %u to the username, enabling path traversal for attacker keys.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB		CVE-2026-45309
17 Jul 202618:40
–attackerkb
cgr
Chainguard		CVE-2026-45309 vulnerabilities
2 Jun 202619:17
–cgr
circl
Circl		CVE-2026-45309
17 Jul 202620:39
–circl
cve
CVE		CVE-2026-45309
17 Jul 202618:40
–cve
cvelist
Cvelist		CVE-2026-45309 AsyncSSH `AuthorizedKeysFile %u` path traversal allows attacker-selected authorized keys to authenticate a traversal username
17 Jul 202618:40
–cvelist
debiancve
Debian CVE		CVE-2026-45309
17 Jul 202618:40
–debiancve
euvd
EUVD		EUVD-2026-45255
17 Jul 202618:40
–euvd
nvd
NVD		CVE-2026-45309
17 Jul 202619:17
–nvd
osv
OSV		CGA-W94F-4H34-JJ3P
2 Jun 202616:26
–osv
osv
OSV		CLEANSTART-2026-AZ09261 Security fixes for CVE-2023-46136, CVE-2024-12797, CVE-2024-34069, CVE-2024-49766, CVE-2024-49767, CVE-2025-62727, CVE-2025-66221, CVE-2026-0994, CVE-2026-21860, CVE-2026-22815, CVE-2026-25645, CVE-2026-26007, CVE-2026-27199, CVE-2026-27205, CVE-2026-27448, CVE-2026-27459, CVE-2026-30922, CVE-2026-31958, CVE-2026-32597, CVE-2026-34073, CVE-2026-34513, CVE-2026-34514, CVE-2026-34515, CVE-2026-34516, CVE-2026-34517, CVE-2026-34518, CVE-2026-34519, CVE-2026-34520, CVE-2026-34525, CVE-2026-35536, CVE-2026-40217, CVE-2026-40347, CVE-2026-41016, CVE-2026-41018, CVE-2026-41066, CVE-2026-42561, CVE-2026-44307, CVE-2026-44405, CVE-2026-44431, CVE-2026-44432, CVE-2026-44681, CVE-2026-45309, CVE-2026-4539, CVE-2026-45409, CVE-2026-48522, CVE-2026-48523, CVE-2026-48524, CVE-2026-48525, CVE-2026-48526, CVE-2026-48710, CVE-2026-8328, CVE-2026-8838, ghsa-29h4-r29x-hchv, ghsa-29vq-49wr-vm6x, ghsa-2g68-c3qc-8985, ghsa-2vrm-gr82-f7m5, ghsa-3wq7-rqq7-wx6j, ghsa-5239-wwwm-4pmq, ghsa-53mr-6c8q-9789, ghsa-63hf-3vf5-4wqf, ghsa-68rp-wp8r-4726, ghsa-752w-5fwx-jx9f, ghsa-78cv-mqj4-43f7, ghsa-79v4-65xg-pq4g, ghsa-7f5h-v6xp-fcq8, ghsa-7gcm-g887-7qv7, ghsa-87hc-h4r5-73f7, ghsa-966j-vmvw-g2g9, ghsa-c427-h43c-vf67, ghsa-f9vj-2wh5-fj8j, ghsa-fqwm-6jpj-5wxc, ghsa-gc5v-m9x4-r6x2, ghsa-h4gh-qq45-vh27, ghsa-hcc4-c3v8-rx92, ghsa-hg6j-4rv6-33pg, ghsa-hgf8-39gv-g3f2, ghsa-hrfv-mqp8-q5rw, ghsa-jj8c-mmj3-mmgv, ghsa-jjhc-v7c2-5hh6, ghsa-jr27-m4p2-rc6r, ghsa-m5qp-6w8w-w647, ghsa-m959-cc7f-wv43, ghsa-mj87-hwqh-73pj, ghsa-mwh4-6h8g-pg8w, ghsa-p998-jp59-783m, ghsa-q34m-jh98-gwm2, ghsa-qjxf-f2mg-c6mc, ghsa-r6ph-v2qm-q3c2, ghsa-v92g-xgxw-vvmm, ghsa-vfmq-68hx-4jfw, ghsa-w2fm-2cpv-w7v5, ghsa-xqmj-j6mv-4862 applied in versions: 3.2.0-r0, 3.2.0-r1, 3.2.1-r2, 3.2.1-r3
8 Jun 202612:29
–osv
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asyncssh_projectasyncsshMatch2.22.0pip

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27 May 2026 21:35Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.5
CVSS 48.2
EPSS0.0044
SSVC
CWE-22
authorized keys filepath traversalper user patternpublic key authentication
20