{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-85013", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-09-02T19:15:03.876Z", "datePublished": "2026-09-15T15:08:33.907Z", "dateUpdated": "2026-10-14T17:51:39.017Z" }, "containers": { "cna": { "title": "Environment-modules: command injection in environment-modules bash completion via malicious module names containing shell metacharacters", "metrics": [ { "other": { "content": { "value": "Moderate", "namespace": "https://access.redhat.com/security/updates/classification/" }, "type": "Red Hat severity rating" } }, { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H", "version": "3.1" }, "format": "CVSS" } ], "descriptions": [ { "lang": "en", "value": "A flaw was found in environment-modules. A local attacker can exploit this vulnerability by placing a maliciously named modulefile in a location visible to the victim's `MODULEPATH`. When the victim uses Bash completion for `module` or `ml` commands, the malicious module name, containing shell metacharacters, is evaluated as a command. This can lead to arbitrary command execution in the completing user's shell, impacting their confidentiality, integrity, and availability." } ], "affected": [ { "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "environment-modules", "defaultStatus": "affected", "versions": [ { "version": "0:5.6.1-2.el10_2.1", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/o:redhat:enterprise_linux:10.2" ] }, { "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "environment-modules", "defaultStatus": "affected", "versions": [ { "version": "0:4.5.2-5.el8_10", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/o:redhat:enterprise_linux:8::baseos" ] }, { "vendor": "Red Hat", "product": "Red Hat Hardened Images", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "environment-modules-main", "defaultStatus": "affected", "versions": [ { "version": "5.6.2-1.hum1", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/a:redhat:hummingbird:1" ] }, { "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 6", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "environment-modules", "defaultStatus": "unknown", "cpes": [ "cpe:/o:redhat:enterprise_linux:6" ] }, { "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "environment-modules", "defaultStatus": "affected", "cpes": [ "cpe:/o:redhat:enterprise_linux:7" ] }, { "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "environment-modules", "defaultStatus": "affected", "cpes": [ "cpe:/o:redhat:enterprise_linux:9" ] } ], "references": [ { "url": "https://access.redhat.com/errata/RHSA-2026:64766", "name": "RHSA-2026:64766", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:80664", "name": "RHSA-2026:80664", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:82919", "name": "RHSA-2026:82919", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/security/cve/CVE-2026-85013", "tags": [ "vdb-entry", "x_refsource_REDHAT" ] }, { "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2465635", "name": "RHBZ#2465635", "tags": [ "issue-tracking", "x_refsource_REDHAT" ] }, { "url": "https://github.com/envmodules/modules/security/advisories/GHSA-8hrw-p88g-qhmg" } ], "datePublic": "2026-09-15T14:10:00.000Z", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-78", "description": "Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')", "lang": "en", "type": "CWE" } ] } ], "x_redhatCweChain": "CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')", "workarounds": [ { "lang": "en", "value": "To mitigate this issue, avoid enabling Bash completion for `module` and `ml` in environments where untrusted users can influence `MODULEPATH`. Additionally, ensure that shared module search paths do not include attacker-writable directories. As a practical measure, the affected completion script can be removed or disabled by commenting out its sourcing in shell configuration files (e.g., `~/.bashrc` or `/etc/profile.d/`). Users must start a new shell session for changes to take effect." } ], "timeline": [ { "lang": "en", "time": "2026-05-04T15:54:57.000Z", "value": "Reported to Red Hat." }, { "lang": "en", "time": "2026-09-15T14:10:00.000Z", "value": "Made public." } ], "credits": [ { "lang": "en", "value": "This issue was discovered by Found by AISLE in partnership with Red Hat." } ], "providerMetadata": { "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-10-14T17:51:39.017Z" }, "x_generator": { "engine": "cvelib 1.8.0" } }, "adp": [ { "references": [ { "url": "https://github.com/envmodules/modules/security/advisories/GHSA-8hrw-p88g-qhmg", "tags": [ "exploit" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-09-15T17:20:35.841689Z", "id": "CVE-2026-85013", "options": [ { "Exploitation": "poc" }, { "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": "2026-09-15T17:21:51.961Z" } } ] } }