CVE-2026-85013

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This can lead to arbitrary command execution in the completing user's shell, impacting their confidentiality, integrity, and availability."}], "id": "CVE-2026-85013", "lastModified": "2026-11-11T19:17:46.120", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 1.3, "impactScore": 5.9, "source": "secalert@redhat.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-85013", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-15T17:20:35.841689Z", "version": "2.0.3"}}]}, "published": "2026-09-15T16:17:34.543", "references": [{"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:64766"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:80664"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:82919"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:84594"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:98460"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:98565"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/security/cve/CVE-2026-85013"}, {"source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2465635"}, {"source": "secalert@redhat.com", "url": "https://github.com/envmodules/modules/security/advisories/GHSA-8hrw-p88g-qhmg"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/envmodules/modules/security/advisories/GHSA-8hrw-p88g-qhmg"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-78"}], "source": "secalert@redhat.com", "type": "Secondary"}]}

{"acknowledgement": "This issue was discovered by Found by AISLE in partnership with Red Hat.", "bugzilla": {"description": "environment-modules: Command injection in environment-modules Bash completion via malicious module names containing shell metacharacters", "id": "2465635", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2465635"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-78", "details": ["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."], "mitigation": {"lang": "en:us", "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."}, "name": "CVE-2026-85013", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "environment-modules", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "environment-modules", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "environment-modules", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "environment-modules", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "environment-modules", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "environment-modules", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-09-15T14:10:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-85013\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-85013\nhttps://github.com/envmodules/modules/security/advisories/GHSA-8hrw-p88g-qhmg"], "statement": "This Moderate impact flaw in `environment-modules` allows a local attacker to execute arbitrary commands by crafting malicious module names. Exploitation requires the attacker to influence the `MODULEPATH` and the victim to use Bash completion for `module` or `ml` commands, triggering the vulnerability through user interaction. This limits the broad exploitability, aligning with a Moderate classification.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Red Hat Enterprise Linux 10", "source": "cna", "vendor": "Red Hat"}, "product": "enterprise_linux", "vendor": "red_hat"}, {"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Red Hat Enterprise Linux 10", "source": "cna", "vendor": "Red Hat"}, "product": "enterprise_linux", "vendor": "redhat"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.6.2-1.hum1,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Red Hat Hardened Images", "source": "cna", "vendor": "Red Hat"}, "product": "hardened_images", "vendor": "redhat"}, {"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "product": "hummingbird", "vendor": "redhat"}], "created": "2026-09-16T03:45:08.120466+00:00", "updated": "2026-11-10T22:45:02.599650+00:00", "vendors": ["red_hat", "red_hat$PRODUCT$enterprise_linux", "redhat", "redhat$PRODUCT$enterprise_linux", "redhat$PRODUCT$hardened_images", "redhat$PRODUCT$hummingbird"]}