NVD / CVE Program· CNA apache

CVE-2023-35887: Apache MINA SSHD: Information disclosure bugs with RootedFilesystem

Noroxi assessment

Priority: Monitor (action score 17/100)

Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
Probability of exploitation in the next 30 days: 1.3% (FIRST EPSS); higher than 70.8% of all records.
Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
Fixed version: Apache Software Foundation Apache MINA SSHD 2.10.
Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Apache Software Foundation Apache MINA SSHD 2.10 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Software Foundation Apache MINA. In SFTP servers implemented using Apache MINA SSHD that use a RootedFileSystem, logged users may be able to discover "exists/does not exist" information about items outside the rooted tree via paths including parent navigation ("..") beyond the root, or involving symlinks. This issue affects Apache MINA: from 1.0 before 2.10. Users are recommended to upgrade to 2.10

MediumCVSS 4.3 · v3.1—Proof of concept Fix available

Path traversal

Published: Jul 10, 2023
Updated: Jun 17, 2026
EPSS: 1.3% · 70th percentile
CWE: CWE-22

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 17 / 40 · 4.3 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 1.3%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 4.3
CNA · apache: 5.0; 0.7 point gap

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
Proof of concept exists, no weaponized module
A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

ProductVersion

Vendor	Product	CPE
apache	sshd	cpe:2.3:a:apache:sshd

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

apache sshd1.0.0 and later · before 2.9.3

Versions reported by the vendor

Affected version ranges reported by the assigning authority (apache). Independent of NVD's CPE analysis and usually ahead of it.

Apache Software Foundation Apache MINA SSHD
- 1.0 and later · before 2.10affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

+96

Same product

apache: all records

Other highest-scoring records for the same primary product.

CVE-2022-45047Apache MINA SSHD: Java unsafe deserialization vulnerability
40Plan
CVE-2021-30129DoS/OOM leak vulnerability in Apache Mina SSHD Server
27Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
Apache Software Foundation Apache MINA SSHD	2.10	Vendor (CNA)
Maven:org.apache.sshd:sshd-common	2.9.3	Package registry (OSV)
Maven:org.apache.sshd:sshd-core	2.1.0	Package registry (OSV)
Maven:org.apache.sshd:sshd-sftp	2.9.3	Package registry (OSV)
red hat:eap7-activemq-artemis	0:2.16.0-17.redhat_00051.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7	Package registry (OSV)
red hat:eap7-activemq-artemis-cli	0:2.16.0-17.redhat_00051.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7	Package registry (OSV)
red hat:eap7-activemq-artemis-commons	0:2.16.0-17.redhat_00051.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7	Package registry (OSV)
red hat:eap7-guava	0:32.1.1-2.jre_redhat_00001.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7	Package registry (OSV)
red hat:eap7-guava-libraries	0:32.1.1-2.jre_redhat_00001.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7	Package registry (OSV)
red hat:eap7-jboss-xnio-base	0:3.8.11-1.SP1_redhat_00001.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7	Package registry (OSV)
red hat:eap7-undertow	0:2.2.28-1.SP1_redhat_00001.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7	Package registry (OSV)
red hat:eap7-wildfly	0:7.4.14-5.GA_redhat_00002.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7	Package registry (OSV)
red hat:eap7-wildfly-java-jdk11	0:7.4.14-5.GA_redhat_00002.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7	Package registry (OSV)
red hat:eap7-wildfly-java-jdk8	0:7.4.14-5.GA_redhat_00002.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7	Package registry (OSV)
red hat:eap7-wildfly-javadocs	0:7.4.14-5.GA_redhat_00002.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7	Package registry (OSV)
red hat:eap7-wildfly-modules	0:7.4.14-5.GA_redhat_00002.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7	Package registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
Source	Kind	Date
Proof-of-concept repository on GitHub	stars:0	2025-08-18

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

PublishedJul 10, 2023
First PoCAug 18, 2025+769 d
TodayNov 9, 2026+1218 d

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Andrew Piklerfinder

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

TR-23-0395 · Jul 11, 2023(Apache Güvenlik Bildirimi)

All national notices →

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
A low-privileged account is enough.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: low · data can be read
Integrity: none
Availability: none

Attack vector: Network
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: Low
Integrity impact: None
Availability impact: None

Weakness class (CWE)

CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

nvd-primary

Root cause

A user-supplied file name is joined with the allowed directory, but the result is never checked to confirm it is still inside that directory.

The bug in code

The whole CWE-22 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1const file = path.join(ROOT, req.query.name);
2res.sendFile(file);

Fixed

1const file = path.resolve(ROOT, req.query.name);
2if (!file.startsWith(ROOT + path.sep)) {
3  return res.sendStatus(400);
4}
5res.sendFile(file);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log

Fix✗ → ✓Sep 28, 2026, 10:10 PM UTC

For records you follow, these changes also arrive as notifications. →

References

lists.apache.org/thread/b9qgtqvhnvgfpn0w1gz918p21p53tqk2

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records

Ecosystem	Package	Affected range	Fix
Maven	org.apache.sshd:sshd-common	from 2.1.0 · before 2.9.3	2.9.3
Maven	org.apache.sshd:sshd-core	from 1.0.0 · before 2.1.0	2.1.0
Maven	org.apache.sshd:sshd-sftp	from 1.0.0 · before 2.9.3	2.9.3
Red Hat:jboss_enterprise_application_platform:7.4::el7	eap7-activemq-artemis	before 0:2.16.0-17.redhat_00051.1.el7eap	0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7	eap7-activemq-artemis-cli	before 0:2.16.0-17.redhat_00051.1.el7eap	0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7	eap7-activemq-artemis-commons	before 0:2.16.0-17.redhat_00051.1.el7eap	0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7	eap7-activemq-artemis-core-client	before 0:2.16.0-17.redhat_00051.1.el7eap	0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7	eap7-activemq-artemis-dto	before 0:2.16.0-17.redhat_00051.1.el7eap	0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7	eap7-activemq-artemis-hornetq-protocol	before 0:2.16.0-17.redhat_00051.1.el7eap	0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7	eap7-activemq-artemis-hqclient-protocol	before 0:2.16.0-17.redhat_00051.1.el7eap	0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7	eap7-activemq-artemis-jdbc-store	before 0:2.16.0-17.redhat_00051.1.el7eap	0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7	eap7-activemq-artemis-jms-client	before 0:2.16.0-17.redhat_00051.1.el7eap	0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7	eap7-activemq-artemis-jms-server	before 0:2.16.0-17.redhat_00051.1.el7eap	0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7	eap7-activemq-artemis-journal	before 0:2.16.0-17.redhat_00051.1.el7eap	0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7	eap7-activemq-artemis-ra	before 0:2.16.0-17.redhat_00051.1.el7eap	0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7	eap7-activemq-artemis-selector	before 0:2.16.0-17.redhat_00051.1.el7eap	0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7	eap7-activemq-artemis-server	before 0:2.16.0-17.redhat_00051.1.el7eap	0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7	eap7-activemq-artemis-service-extensions	before 0:2.16.0-17.redhat_00051.1.el7eap	0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7	eap7-activemq-artemis-tools	before 0:2.16.0-17.redhat_00051.1.el7eap	0:2.16.0-17.redhat_00051.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7	eap7-apache-sshd	before 0:2.9.3-1.redhat_00001.1.el7eap	0:2.9.3-1.redhat_00001.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7	eap7-avro	before 0:1.11.3-1.redhat_00001.1.el7eap	0:1.11.3-1.redhat_00001.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7	eap7-guava	before 0:32.1.1-2.jre_redhat_00001.1.el7eap	0:32.1.1-2.jre_redhat_00001.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7	eap7-guava-libraries	before 0:32.1.1-2.jre_redhat_00001.1.el7eap	0:32.1.1-2.jre_redhat_00001.1.el7eap
Red Hat:jboss_enterprise_application_platform:7.4::el7	eap7-hal-console	before 0:3.3.20-1.Final_redhat_00001.1.el7eap	0:3.3.20-1.Final_redhat_00001.1.el7eap