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Apache MINA SSHD EUVDEUVD-2026-89757

| CVE-2026-94053 CRITICAL
LDAP Injection (CWE-90)
2026-09-29 GHSA-qrc3-w53g-j8gv
Authentication Bypass Apache Java LDAP Code Injection Suse
9.1
CVSS 3.1 · Vendor
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Severity by source

Vendor (CNA) PRIMARY
9.1 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
vuln.today AI
9.1 CRITICAL

Remote, no privileges or interaction, low complexity; full auth bypass grants confidentiality and integrity impact, no direct availability effect, no scope change.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
SUSE
8.1 HIGH
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from Vendor (CNA).

CVSS VectorVendor

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

7
Patch available
Sep 30, 2026 - 11:01 EUVD
Analysis Updated
Sep 30, 2026 - 10:28 vuln.today
v2 (cvss_changed)
Re-analysis Queued
Sep 30, 2026 - 10:22 vuln.today
cvss_changed
CVSS changed
Sep 30, 2026 - 10:22 NVD
9.1 (CRITICAL)
Metadata Corrected
Sep 29, 2026 - 20:40 vuln.today
tag: Java added
Analysis Generated
Sep 29, 2026 - 20:16 vuln.today
CVE Published
Sep 29, 2026 - 18:31 oss-security
CRITICAL

Description PRE-NVD

Disclosed via oss-security. NVD scoring and full description are pending.

Articles & Coverage 3

News 10 New Linux Vulnerabilities - 1 Critical, 9 High Severity Sep 30, 2026 News 14 New Java Vulnerabilities - 4 Critical, 10 High Severity Sep 30, 2026 News Critical LDAP Injection in Apache MINA SSHD - CVE-2026-94053 Sep 30, 2026

AnalysisAI

Authentication bypass in the optional sshd-ldap component of Apache MINA SSHD (versions 1.2.0 through 2.19.0 and 3.0.0-M1 through 3.0.0-M5) lets unauthenticated remote attackers complete SSH authentication by submitting the literal username "*" with the password "*", because LDAP filter metacharacters from user-supplied credentials are not escaped before being embedded in the search filter. Rated CVSS 9.1 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N), the flaw is trivially reachable but only on servers that both embed the MINA SSHD library and have deployed and configured sshd-ldap for password or publickey authentication; stock MINA SSHD deployments without that optional component are entirely unaffected, and no public exploit code was identified at time of analysis. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Exploitation requires that the target SSH server is implemented with Apache MINA SSHD AND has the optional sshd-ldap component deployed AND has configured sshd-ldap to perform password or publickey authentication against an LDAP directory - this is not a default configuration and MINA SSHD servers without sshd-ldap are entirely unaffected. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This is a genuine high-priority pre-authentication flaw where signals largely align rather than conflict. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Vendor-released patch: upgrade to Apache MINA SSHD 2.20.0 or 3.0.0-M6, which escape LDAP filter parameters according to RFC 4515; see https://seclists.org/oss-sec/2026/q3/1012 and the Apache thread at https://lists.apache.org/thread.html/cyrxkdzl3c70rrqs3klqphqz1hwm7p41. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours, inventory all applications and services embedding Apache MINA SSHD and determine whether the optional sshd-ldap component is present and configured for password or publickey authentication; for any confirmed instance, treat it as an unauthenticated remote authentication bypass and consider temporarily disabling sshd-ldap authentication or shielding affected SSH endpoints behind network access controls, VPN, or IP allow-listing, and enable verbose authentication and LDAP query logging for detection. …

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Vendor StatusVendor

SUSE

Severity: Important
Product Status
openSUSE Tumbleweed Fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS Affected

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EUVD-2026-89757 vulnerability details – vuln.today
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