Open Notebook before 1.11.0 Server-Side Request Forgery via link-source
Priority HIGH 69CWE-918Published · Updated
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
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.
Summary
Open Notebook before 1.11.0 fails to validate the URL parameter in POST /api/sources endpoint, allowing authenticated users to perform server-side requests to internal services. Attackers can supply arbitrary URLs to read cloud metadata, internal network services, and localhost-bound services through the application server's direct HTTP requests.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00415 36th percentileScored 2026-11-07
Fix Fixed open-notebook (lfnovo): 1.11.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- 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 |
|---|---|---|---|---|---|
| Open Notebook | open-notebook | before 1.11.0 | 1.11.0 | Patch available | CNA |
- open-notebook VendorOpen Notebook Affected before 1.11.0 Fixed in 1.11.0 Patch available CNA
Remediation
- Fix · CNA open-notebook (lfnovo) Fixed in 1.11.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-90769
- 2026-10-03 Alias added: GHSA-wr7p-6rrg-8m28
References
More Open Notebook vulnerabilities
- TI-2026-25969 Remote Code Execution (RCE) via Server-Side Template Injection (SSTI) CVSS 4.0CRITICAL 9.2
- TI-2026-22539 SurrealDB Injection on Open Notebook CVSS 4.0HIGH 8.7
- TI-2026-25971 Arbitrary File Read via Local File Inclusion (LFI) CVSS 4.0HIGH 8.2
- TI-2026-25970 Arbitrary file write through path traversal in Open Notebook CVSS 4.0HIGH 7.0
Sources
- CVE-2026-90769 · CVE Program
- CVE-2026-90769 · NVD
- FIRST EPSS
- GHSA-wr7p-6rrg-8m28 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences