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Fencer Intel
high 7.3

CVE-2026-85013 json

Environment-modules: command injection in environment-modules bash completion via malicious module names containing shell metacharacters

published 2mo ago modified 9h ago also EUVD-2026-78780 , GHSA-8hrw-p88g-qhmg

Unreviewed: the maintainers' own advisory

Published by the maintainers on their GitHub repository envmodules/modules. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.

cvss
7.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 13%
public exploits
0
none known

Summary

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.

Patch / fix

  • Red Hat Red Hat Enterprise Linux 10 0:5.6.1-2.el10_2.1, 0:5.6.1-3.el10_3
  • Red Hat Red Hat Enterprise Linux 8 0:4.5.2-5.el8_10
  • Red Hat Red Hat Enterprise Linux 9 0:5.3.0-2.el9_8.1, 0:5.3.0-3.el9_9
  • Red Hat Red Hat Hardened Images 5.6.2-1.hum1
  • modules Debian 14 5.6.1-3

debian advisories DEBIAN-CVE-2026-85013

  • environment-modules RHEL 9 5.3.0-2.el9_8.1
  • environment-modules RHEL 8 4.5.2-5.el8_10
  • environment-modules RHEL 10.2 5.6.1-2.el10_2.1
  • environment-modules hummingbird 1 5.6.2-1.hum1

red hat advisories RHSA-2026:84594RHSA-2026:82919RHSA-2026:80664RHSA-2026:64766

  • environment-modules AlmaLinux 9 5.3.0-2.el9_8.1
  • environment-modules AlmaLinux 8 4.5.2-5.el8_10
  • environment-modules AlmaLinux 10 5.6.1-2.el10_2.1

almalinux advisories ALSA-2026:84594ALSA-2026:82919ALSA-2026:80664

  • environment-modules Rocky Linux 9 5.3.0-2.el9_8.1
  • environment-modules Rocky Linux 8 4.5.2-5.el8_10
  • environment-modules Rocky Linux 10 5.6.1-2.el10_2.1

rocky linux advisories RLSA-2026:84594RLSA-2026:82919RLSA-2026:80664

  • environment-modules Azure Linux 3.0 5.3.2-1

azure linux advisories AZL-107969

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-85013 updated cvss 7.3

environment-modules: Command injection in environment-modules Bash completion via malicious module names containing shell metacharacters

  • Red Hat Enterprise Linux 6 environment-modules
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 environment-modules
    affected: workaround, no fix available
  • Red Hat OpenShift AI (RHOAI) rhoai/odh-dashboard-rhel9
    under investigation
  • Red Hat Enterprise Linux BaseOS (v. 8) environment-modules 4.5.2-5.el8_10
    fixed: vendor fix RHSA-2026:82919
  • Red Hat Enterprise Linux BaseOS (v. 9) environment-modules 5.3.0-3.el9_9, environment-modules 5.3.0-2.el9_8.1
    fixed: vendor fix RHSA-2026:84594
  • Red Hat Enterprise Linux BaseOS (v. 10) environment-modules 5.6.1-3.el10_3, environment-modules 5.6.1-2.el10_2.1
    fixed: vendor fix RHSA-2026:80664
  • Red Hat Hardened Images environment-modules 5.6.2-1.hum1
    fixed: vendor fix RHSA-2026:64766

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
last mo.

Exploit prediction

0.23% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-11).

Exploits and checks

  • github.com https://github.com/envmodules/modules/security/advisories/GHSA-8hrw-p88g-qhmg referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Affected products

  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Red Hat Hardened Images
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat OpenShift AI (RHOAI)

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

The maintainers of envmodules/modules published their own advisory on GitHub. Reviewed sources take precedence over it.