In SaltStack Salt 2016.9 through 3002.6, a command injection vulnerability exists in the…
Priority MEDIUM 43CWE-78Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-78.
Summary
In SaltStack Salt 2016.9 through 3002.6, a command injection vulnerability exists in the snapper module that allows for local privilege escalation on a minion. The attack requires that a file is created with a pathname that is backed up by snapper, and that the master calls the snapper.diff function (which executes popen unsafely).
Why it matters now
EPSS 0.05922 93rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial salt (PyPI): 3003rc1Red Hat: 1 without a fix
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 |
| — | salt (PyPI) | 2016.11.0 to before 3003rc1 | 3003rc1 | Patch available | GHSA-hcjf-rp5h-g5h3 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- salt (PyPI) Vendor— Affected 2016.11.0 to before 3003rc1 Fixed in 3003rc1 Patch available GHSA-hcjf-rp5h-g5h3
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:saltstack:salt:*:*:*:*:*:*:*:* | 2016.9 – 3002.6 | Vulnerable | SaltStack |
| cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | 33 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 34 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* | 35 | Vulnerable | Fedoraproject |
- cpe:2.3:a:saltstack:salt:*:*:*:*:*:*:*:* Versions 2016.9 – 3002.6 Vulnerable ·SaltStack
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* Versions 33 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Versions 34 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Versions 35 Vulnerable ·Fedoraproject
Remediation
- Fix · GHSA-hcjf-rp5h-g5h3 salt (PyPI) Fixed in 3003rc1 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Ceph Storage 2 | Affected | No fix planned: Out of support scope |
Timeline
- 2026-10-02 Threatist record created from CVE-2021-31607
- 2026-10-03 Alias added: GHSA-hcjf-rp5h-g5h3
References
Advisory 8
Other 10
- https://github.com/pypa/advisory-database/tree/main/vulns/salt/PYSEC-2021-56.yaml
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6BUWUF5VTENNP2ZYZBVFKPSUHLKLUBD5
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ACVT7M4YLZRLWWQ6SGRK3C6TOF4FXOXT
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LDKMAJXYFHM4USVX3H5V2GCCBGASWUSM
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MBAHHSGZLEJRCG4DX6J4RBWJAAWH55RQ
- https://lists.fedoraproject.org/archives/list/[email protected]/message/6BUWUF5VTENNP2ZYZBVFKPSUHLKLUBD5
- https://lists.fedoraproject.org/archives/list/[email protected]/message/ACVT7M4YLZRLWWQ6SGRK3C6TOF4FXOXT
- https://lists.fedoraproject.org/archives/list/[email protected]/message/LDKMAJXYFHM4USVX3H5V2GCCBGASWUSM
- https://lists.fedoraproject.org/archives/list/[email protected]/message/MBAHHSGZLEJRCG4DX6J4RBWJAAWH55RQ
- https://sec.stealthcopter.com/saltstack-snapper-minion-privledge-escaltion
Sources
- CVE-2021-31607 · CVE Program
- CVE-2021-31607 · NVD
- FIRST EPSS
- GHSA-hcjf-rp5h-g5h3 · GitHub Advisory Database · CC BY 4.0
- CVE-2021-31607 · Red Hat security data · CC BY 4.0
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