OS command injection in Red Hat Enterprise Linux 10
Priority HIGH 67CWE-78Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 4 fixed, 3 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-78.
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0023 13th percentileScored 2026-11-07
Fix Partial Red Hat: 4 advisoriesRed Hat: 4 fixed, 3 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | 5.6.1-2.el10_2.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | 4.5.2-5.el8_10 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9 | — | 5.3.0-2.el9_8.1 | Patch available | CNA |
| Red Hat | Red Hat Hardened Images | — | 5.6.2-1.hum1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 6 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | No fix listed | CNA |
| Red Hat | Red Hat OpenShift AI (RHOAI) | — | — | No fix listed | CNA |
- Red Hat Enterprise Linux 10 VendorRed Hat Affected — Fixed in 5.6.1-2.el10_2.1 Patch available CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in 4.5.2-5.el8_10 Patch available CNA
- Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in 5.3.0-2.el9_8.1 Patch available CNA
- Red Hat Hardened Images VendorRed Hat Affected — Fixed in 5.6.2-1.hum1 Patch available CNA
- Red Hat Enterprise Linux 6 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat OpenShift AI (RHOAI) VendorRed Hat Affected — Fixed in — No fix listed CNA
CPE names CNA · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:/o:redhat:enterprise_linux:10.2 | 10.2 | — | Red Hat |
| cpe:/o:redhat:enterprise_linux:8::baseos | 8 | — | Red Hat |
| cpe:/o:redhat:enterprise_linux:9::baseos | 9 | — | Red Hat |
| cpe:/a:redhat:hummingbird:1 | 1 | — | Red Hat |
| cpe:/o:redhat:rhel_els:6 | 6 | — | Red Hat |
| cpe:/o:redhat:rhel_els:7 | 7 | — | Red Hat |
| cpe:/a:redhat:openshift_ai | — | — | Red Hat |
- cpe:/o:redhat:enterprise_linux:10.2 Versions 10.2 — ·Red Hat
- cpe:/o:redhat:enterprise_linux:8::baseos Versions 8 — ·Red Hat
- cpe:/o:redhat:enterprise_linux:9::baseos Versions 9 — ·Red Hat
- cpe:/a:redhat:hummingbird:1 Versions 1 — ·Red Hat
- cpe:/o:redhat:rhel_els:6 Versions 6 — ·Red Hat
- cpe:/o:redhat:rhel_els:7 Versions 7 — ·Red Hat
- cpe:/a:redhat:openshift_ai Versions — — ·Red Hat
Remediation
Red Hat 4 advisories
- RHSA-2026:84594 Released 2026-10-19 · Red Hat rating Moderateenvironment-modules security update
- Red Hat Enterprise Linux BaseOS (v. 9) environment-modules-5.3.0-2.el9_8.1
- RHSA-2026:82919 Released 2026-10-14 · Red Hat rating Moderateenvironment-modules security update
- Red Hat Enterprise Linux BaseOS (v. 8) environment-modules-4.5.2-5.el8_10
- RHSA-2026:80664 Released 2026-10-12 · Red Hat rating Moderateenvironment-modules security update
- Red Hat Enterprise Linux BaseOS (v. 10) environment-modules-5.6.1-2.el10_2.1
Show 1 more Red Hat advisories
- RHSA-2026:64766 Released 2026-09-07 · Red Hat rating ModerateRed Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images environment-modules-5.6.2-1.hum1@aarch64, environment-modules-5.6.2-1.hum1@src, environment-modules-5.6.2-1.hum1@x86_64
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix yet |
| Red Hat OpenShift AI (RHOAI) | Affected | — |
| Red Hat Enterprise Linux BaseOS (v. 10) | Fixed | RHSA-2026:80664 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2026:82919 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2026:84594 |
| Red Hat Hardened Images | Fixed | RHSA-2026:64766 |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-85013
- 2026-10-12 Fix available: environment-modules@0:5.6.1-2.el10_2.1 · CNA
- 2026-10-12 1 new reference · CNA
- 2026-10-12 Fix available: RHSA-2026:80664 · Red Hat
- 2026-10-13 Fix available: Red Hat Enterprise Linux BaseOS (v. 10) · Red Hat
- 2026-10-15 Fix available: RHSA-2026:82919 · Red Hat
- 2026-10-15 Fix available: environment-modules@0:4.5.2-5.el8_10 · CNA
- 2026-10-15 1 new reference · CNA
- 2026-10-16 Fix available: Red Hat Enterprise Linux BaseOS (v. 8) · Red Hat
- 2026-10-19 Fix available: environment-modules@0:5.3.0-2.el9_8.1 · CNA
- 2026-10-19 1 new reference · CNA
- 2026-10-19 Fix available: RHSA-2026:84594 · Red Hat
- 2026-10-19 Fix available: Red Hat Enterprise Linux BaseOS (v. 9) · Red Hat
- 2026-11-06 Affected versions changed · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
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- TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-85013 · CVE Program
- CVE-2026-85013 · NVD
- FIRST EPSS
- CVE-2026-85013 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences