CVE-2023-30840
On a compromised node, the fluid-csi service account can be used to modify node specs
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
Fluid is an open source Kubernetes-native distributed dataset orchestrator and accelerator for data-intensive applications. Starting in version 0.7.0 and prior to version 0.8.6, if a malicious user gains control of a Kubernetes node running fluid csi pod (controlled by the `csi-nodeplugin-fluid` node-daemonset), they can leverage the fluid-csi service account to modify specs of all the nodes in the cluster. However, since this service account lacks `list node` permissions, the attacker may need to use other techniques to identify vulnerable nodes. Once the attacker identifies and modifies the node specs, they can manipulate system-level-privileged components to access all secrets in the cluster or execute pods on other nodes. This allows them to elevate privileges beyond the compromised node and potentially gain full privileged access to the whole cluster. To exploit this vulnerability, the attacker can make all other nodes unschedulable (for example, patch node with taints) and wait for system-critical components with high privilege to appear on the compromised node. However, this attack requires two prerequisites: a compromised node and identifying all vulnerable nodes through other means. Version 0.8.6 contains a patch for this issue. As a workaround, delete the `csi-nodeplugin-fluid` daemonset in `fluid-system` namespace and avoid using CSI mode to mount FUSE file systems. Alternatively, using sidecar mode to mount FUSE file systems is recommended.
Timeline
ID reserved
By GitHub_M
- 20 days later
· 20 days later
Published
- 21 months later
· 21 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium5.8 | CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:L |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.24% · top 85% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.8.
Weakness
Affected products
- affected >= 0.7.0, < 0.8.6
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Gogithub.com/fluid-cloudnative/fluidGHSA-93xx-cvmc-9w3v (opens in a new tab)
References (4)
- https://github.com/fluid-cloudnative/fluid/security/advisories/GHSA-93xx-cvmc-9w3v (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/fluid-cloudnative/fluid/commit/77c8110a3d1ec077ae2bce6bd88d296505db1550 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/fluid-cloudnative/fluid/commit/91c05c32db131997b5ca065e869c9918a125c149 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/fluid-cloudnative/fluid/releases/tag/v0.8.6 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-93xx-cvmc-9w3v (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-30840)Record last updated .