WID-SEC-W-2026-3785

csafDEcert_bund

DeutschIn der Originalsprache angezeigt — eine vollständige Übersetzung ist für eine zukünftige Version geplant.

OpenSSH: Mehrere Schwachstellen

Advisory ansehen veröffentlicht 2026-10-06

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in OpenSSH ausnutzen, um Sicherheitsvorkehrungen zu umgehen, um einen Denial of Service herbeizufürhen oder seine Rechte auszuweiten.

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beschreibt (11)

Zugehörige CVEs.

IDSchweregrad ausnutzbar
CVE-2026-106583UShigh7.8—
In ssh in OpenSSH before 10.6, a $ or \ character can occur in a command-line username, leading to injection.
CVE-2026-106589US——
In sshd in OpenSSH through 10.6, in certain environments such as QNX 6 and SCO OpenServer 5, sshd-session can unexpectedly have root privileges. This is related to the GatewayPorts…
CVE-2026-106588US——
In sshd in OpenSSH through 10.6, use of the macOS 27 (or later) SDK has the side effect of loss of sandboxing, which is potentially unexpected.
CVE-2026-106587USlow3.3—
In sshd in OpenSSH before 10.6, the value "none" for a configuration option is sometimes interpreted as a filename but was intended to mean that a feature is disabled.
CVE-2026-106586USmedium4.3—
In sshd in OpenSSH before 10.6, the restrict keyword (in authorized_keys) was supposed to be applicable to tunnel forwarding but was not, a different vulnerability than CVE-2026-73…
CVE-2026-106585US——
In sshd and ssh in OpenSSH before 10.6, there is no check for whether the maximum packet length is exceeded during decompression of highly compressed data.
CVE-2026-106584USlow3.3—
In ssh-keygen in OpenSSH before 10.6, certificates could have incorrect expiration times because of Daylight Saving mishandling. There can be a slightly more severe effect on users…
CVE-2026-106582US——
In sshd and ssh in OpenSSH before 10.6, an LZ77 dictionary coder can be used even though this is contraindicated by the arXiv 2609.07709 "Crossing the Streams" findings.
CVE-2026-106555UShigh7.5—
In sshd in OpenSSH before 10.6, GSSAPIAuthentication authentication state can incorrectly be persisted across authentication attempts.
CVE-2026-106553UShigh7.5—
In sshd in OpenSSH before 10.6, credentials can incorrectly persist after failure of a GSSAPIAuthentication authentication attempt.
CVE-2026-106552USmedium6.5—
In sftp in OpenSSH before 10.6, a server can trigger directory traversal (causing files to be written to unintended locations) during a recursive copy operation.
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Referenzen

Externe Belege — Patches, Meldungen, Analysen.

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