FKIE_CVE-2026-56452
Vulnerability from fkie_nvd - Published: 2026-07-20 21:16 - Updated: 2026-07-20 23:16
Severity
Summary
Path traversal in the sshd-scp component of Apache MINA SSHD. Apache MINA SSHD is a Java library for client-side and server-side SSH.
The implementation of receiving files or directories via SCP did not validate filenames in SCP "C" or "D" commands. A malicious sender could send filenames containing paths, resulting in files to be written in attacker-controlled places.
The issue affects only
* applications that use no longer supported Apache MINA SSHD versions < 2.0.0 and use the SCP functions to receive files,
* or applications using sshd-scp in Apache MINA SSHD >= 2.0.0 to receive files.
Applications using Apache MINA SSHD >= 2.0.0 not using sshd-scp are not affected.
The issue is fixed in Apache MINA 2.19.0 and 3.0.0-M5. Affected applications are advised to upgrade to these versions.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"collectionURL": "https://repo.maven.apache.org/maven2",
"defaultStatus": "unaffected",
"packageName": "org.apache.sshd:sshd-scp",
"product": "Apache MINA SSHD",
"vendor": "Apache Software Foundation",
"versions": [
{
"lessThanOrEqual": "2.18.0",
"status": "affected",
"version": "0",
"versionType": "maven"
},
{
"lessThanOrEqual": "3.0.0-M4",
"status": "affected",
"version": "3.0.0-M1",
"versionType": "maven"
}
]
}
],
"source": "security@apache.org"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Path traversal in the sshd-scp component of Apache MINA SSHD.\u00a0Apache MINA SSHD is a Java library for client-side and server-side SSH.\n\n\n\n\nThe implementation of receiving files or directories via SCP did not validate filenames in SCP \"C\" or \"D\" commands. A malicious sender could send filenames containing paths, resulting in files to be written in attacker-controlled places.\n\n\n\n\nThe issue affects only\n\n * applications that use no longer supported Apache MINA SSHD versions \u003c 2.0.0 and use the SCP functions to receive files,\n * or applications using sshd-scp in Apache MINA SSHD \u003e= 2.0.0 to receive files.\n\n\n\n\nApplications using Apache MINA SSHD \u003e= 2.0.0 not using sshd-scp are not affected.\n\n\n\n\nThe issue is fixed in Apache MINA 2.19.0 and 3.0.0-M5. Affected applications are advised to upgrade to these versions."
}
],
"id": "CVE-2026-56452",
"lastModified": "2026-07-20T23:16:56.910",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "security@apache.org",
"type": "Secondary"
}
]
},
"published": "2026-07-20T21:16:48.820",
"references": [
{
"source": "security@apache.org",
"url": "https://lists.apache.org/thread/xgoqvmksmd94fsqnzqjdtfjxf35os9no"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.openwall.com/lists/oss-security/2026/07/20/15"
}
],
"sourceIdentifier": "security@apache.org",
"vulnStatus": "Received",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-22"
},
{
"lang": "en",
"value": "CWE-73"
}
],
"source": "security@apache.org",
"type": "Secondary"
}
]
}
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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