SUSE SLED15 / SLES15 Security Update : apache-sshd (SUSE-SU-2026:4622-1)

critical Nessus Plugin ID 365326

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Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4622-1 advisory.

- CVE-2026-77185: Asynchronous authentication can bypass signature verification (bsc#1283357).
- CVE-2026-93994: Repeated-publickey policy bypass on server (bsc#1283352).
- CVE-2026-93995: Remote execution of JGit 'archive -o=file.zip' can write file on the server (bsc#1283350).
- CVE-2026-93996: Memory exhaustion DoS via unbounded SCP command line read (bsc#1283348).
- CVE-2026-94002: Memory exhaustion in SFTP client via unsolicited SFTP replies (bsc#1283347).
- CVE-2026-94029: Memory exhaustion in SFTP v6 check-file-name/check-file-handle extension (bsc#1283346).
- CVE-2026-94052: LDAP password authentication ineffective (bsc#1283345).
- CVE-2026-94053: LDAP injection in sshd-ldap (bsc#1283344).

Changes for apache-sshd:

- Update to upstream version 2.20.0:
+ GH-656 ChannelPipedInputStream: shrink buffer when emptied + GH-906 Fix finding a signature factory for BC ed25519 keys + GH-911 Fix server-side SOCKS5 proxy for fragmented and pipelined CONNECT requests + Allow asynchronous authentication only for password and keyboard-interactive authentication schemes + Fix authentication requiring multiple public keys (server-side) + Better argument handling in sshd-git + More checks in authentication (server-side) + Better SCP command handling + SFTP client: simplify response message handling + Fix check-file-name/check-file-handle SFTP v6 extension + Improve LDAP authentication (sshd-ldap)
* New Features + GH-905 Implement the 'from' and 'expiry-time' options in authorized_keys handling in public key authentication (server side)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected apache-sshd package.

Plugin Details

Severity: Critical

ID: 365326

File Name: suse_SU-2026-4622-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 10/13/2026

Updated: 10/13/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.3

Percentile: 96.31

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2026-94053

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:apache-sshd

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 10/12/2026

Vulnerability Publication Date: 9/30/2026

Reference Information

CVE: CVE-2026-77185, CVE-2026-93994, CVE-2026-93995, CVE-2026-93996, CVE-2026-94002, CVE-2026-94029, CVE-2026-94052, CVE-2026-94053

SuSE: SUSE-SU-2026:4622-1

Detections

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