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vuln-cve/data/2026/16xxx/CVE-2026-16493.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-16493",
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"state": "PUBLISHED",
"assignerShortName": "redhat",
"dateReserved": "2026-07-21T16:32:33.912Z",
"datePublished": "2026-07-21T17:26:14.394Z",
"dateUpdated": "2026-11-04T22:09:04.660Z"
},
"containers": {
"cna": {
"title": "Ansible-core: argument injection in ansible-galaxy collection install via git clone (incomplete fix for cve-2026-11332)",
"metrics": [
{
"other": {
"content": {
"value": "Important",
"namespace": "https://access.redhat.com/security/updates/classification/"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in ansible-core. The _extract_collection_from_git() function in ansible-core's concrete_artifact_manager.py constructs git clone commands without a '--' (end-of-options) separator before user-supplied URLs when installing collections from git sources. An attacker who provides a crafted collection source URI containing git argument injection payloads can achieve arbitrary command execution when a user runs 'ansible-galaxy collection install' with the malicious source. This is an incomplete fix for CVE-2026-11332, which hardened the role install path but missed the equivalent collection install code path."
}
],
"affected": [
{
"vendor": "Red Hat",
"product": "Red Hat Satellite 6.17 for RHEL 9",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "ansible-core",
"defaultStatus": "affected",
"versions": [
{
"version": "1:2.16.19-1.el9sat",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/a:redhat:satellite:6.17::el9",
"cpe:/a:redhat:satellite_capsule:6.17::el9",
"cpe:/a:redhat:satellite_maintenance:6.17::el9",
"cpe:/a:redhat:satellite_utils:6.17::el9"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Satellite 6.18 for RHEL 9",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "ansible-core",
"defaultStatus": "affected",
"versions": [
{
"version": "1:2.16.19-1.el9sat",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/a:redhat:satellite:6.18::el9",
"cpe:/a:redhat:satellite_capsule:6.18::el9",
"cpe:/a:redhat:satellite_maintenance:6.18::el9",
"cpe:/a:redhat:satellite_utils:6.18::el9"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Satellite 6.18 for RHEL 9",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "pulpcore-obsolete-packages",
"defaultStatus": "affected",
"versions": [
{
"version": "0:1.3.1-5.el9pc",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/a:redhat:satellite:6.18::el9",
"cpe:/a:redhat:satellite_capsule:6.18::el9",
"cpe:/a:redhat:satellite_maintenance:6.18::el9",
"cpe:/a:redhat:satellite_utils:6.18::el9"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Satellite 6.18 for RHEL 9",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "python3.12-pulpcore",
"defaultStatus": "affected",
"versions": [
{
"version": "0:3.73.30-3.el9pc",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/a:redhat:satellite:6.18::el9",
"cpe:/a:redhat:satellite_capsule:6.18::el9",
"cpe:/a:redhat:satellite_maintenance:6.18::el9",
"cpe:/a:redhat:satellite_utils:6.18::el9"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Satellite 6.19 for RHEL 9",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "ansible-core",
"defaultStatus": "affected",
"versions": [
{
"version": "1:2.16.19-1.el9sat",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
],
"cpes": [
"cpe:/a:redhat:satellite:6.19::el9",
"cpe:/a:redhat:satellite_capsule:6.19::el9",
"cpe:/a:redhat:satellite_maintenance:6.19::el9",
"cpe:/a:redhat:satellite_utils:6.19::el9"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Ansible Automation Platform 2",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "ansible-core",
"defaultStatus": "affected",
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 10",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "ansible-core",
"defaultStatus": "affected",
"cpes": [
"cpe:/a:redhat:enterprise_linux:10"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "ansible-core",
"defaultStatus": "affected",
"cpes": [
"cpe:/a:redhat:enterprise_linux:8"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "ansible-core",
"defaultStatus": "affected",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9"
]
}
],
"references": [
{
"url": "https://access.redhat.com/errata/RHSA-2026:63385",
"name": "RHSA-2026:63385",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
]
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:63386",
"name": "RHSA-2026:63386",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
]
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:63387",
"name": "RHSA-2026:63387",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
]
},
{
"url": "https://access.redhat.com/security/cve/CVE-2026-16493",
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
]
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503724",
"name": "RHBZ#2503724",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
]
}
],
"datePublic": "2026-07-21T16:32:48.105Z",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-88",
"description": "Improper Neutralization of Argument Delimiters in a Command",
"lang": "en",
"type": "CWE"
}
]
}
],
"x_redhatCweChain": "CWE-88: Improper Neutralization of Argument Delimiters in a Command",
"workarounds": [
{
"lang": "en",
"value": "The following practices would help for avoiding exposure and mitigate this flaw:\n\n1. Do not install Ansible collections from untrusted or unverified git sources. Only install collections from trusted sources such as Ansible Galaxy (https://galaxy.ansible.com), Red Hat Automation Hub (https://console.redhat.com/ansible/automation-hub), or verified internal repositories using HTTPS URLs.\n\n2. Carefully inspect any requirements.yml files before running 'ansible-galaxy collection install -r requirements.yml'. Verify that all collection sources use legitimate HTTPS URLs and do not contain git+ prefixed URIs with suspicious characters (especially values starting with '-').\n\n3. Ensure your system's git version is 2.12 or later, which disables the ext:: transport by default. While this does not fully prevent exploitation (the -ccore.sshCommand technique bypasses transport restrictions), it eliminates one of the exploitation vectors.\n\n4. Restrict the GIT_ALLOW_PROTOCOL environment variable to only necessary protocols (e.g. https, ssh) and never include 'ext' unless absolutely required."
}
],
"timeline": [
{
"lang": "en",
"time": "2026-07-21T11:19:29.854Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-07-21T16:32:48.105Z",
"value": "Made public."
}
],
"credits": [
{
"lang": "en",
"value": "Red Hat would like to thank Ta Duc Thien (NTCS) for reporting this issue."
}
],
"providerMetadata": {
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat",
"dateUpdated": "2026-11-04T22:09:04.660Z"
},
"x_generator": {
"engine": "cvelib 1.8.0"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-07-22T14:20:53.644688Z",
"id": "CVE-2026-16493",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-07-22T14:21:51.764Z"
}
}
]
}
}
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