An issue was discovered in ClusterLabs crmsh through 4.2.1.
Priority LOW 35CWE-78Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution, Privilege escalation
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-78 and CWE-269.
Summary
An issue was discovered in ClusterLabs crmsh through 4.2.1. Local attackers able to call "crm history" (when "crm" is run) were able to execute commands via shell code injection to the crm history commandline, potentially allowing escalation of privileges.
Why it matters now
EPSS 0.00689 53rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | crmsh (PyPI) | up to 4.2.1 | — | No fix listed | GHSA-99xx-83jm-h24m |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- crmsh (PyPI) Vendor— Affected up to 4.2.1 Fixed in — No fix listed GHSA-99xx-83jm-h24m
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:clusterlabs:crmsh:*:*:*:*:*:*:*:* | up to 4.2.1 | Vulnerable | ClusterLabs |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
- cpe:2.3:a:clusterlabs:crmsh:*:*:*:*:*:*:*:* Versions up to 4.2.1 Vulnerable ·ClusterLabs
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-35459
- 2026-10-03 Alias added: GHSA-99xx-83jm-h24m
References
Patch 2
Advisory 4
Sources
- CVE-2020-35459 · CVE Program
- CVE-2020-35459 · NVD
- FIRST EPSS
- GHSA-99xx-83jm-h24m · GitHub Advisory Database · CC BY 4.0
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