KubeSphere through 4.1.3 SSRF via git credential verification endpoint
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.
Summary
KubeSphere through 4.1.3 contains a server-side request forgery vulnerability in the git credential verification endpoint that accepts unvalidated caller-supplied URLs without allowlist restrictions. Authenticated attackers can supply arbitrary URLs to reach internal services and exfiltrate basic-auth credentials from Secrets in any namespace by leveraging the endpoint's error response handling.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
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 |
|---|---|---|---|---|---|
| kubesphere | kubesphere | up to 4.1.3 | — | No fix listed | CNA |
- kubesphere Vendorkubesphere Affected up to 4.1.3 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-91923
- 2026-10-03 Alias added: GHSA-847j-gj2f-78j9
References
Other 5
More kubesphere vulnerabilities
- TI-2026-49883 KubeSphere - SSRF via Unvalidated Cluster CRD Connection Endpoint in Cluster Reconciliation CVSS 3.1MEDIUM 6.5
Sources
- CVE-2026-91923 · CVE Program
- CVE-2026-91923 · NVD
- FIRST EPSS
- GHSA-847j-gj2f-78j9 · GitHub Advisory Database · CC BY 4.0
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