Vulnerability-Lookup

CVE-2026-90769 (GCVE-0-2026-90769)

Vulnerability from cvelistv5 – Published: 2026-09-13 10:45 – Updated: 2026-09-14 15:36

Title

Open Notebook before 1.11.0 Server-Side Request Forgery via link-source

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.

Severity

8.3 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

7.7 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-14 15:35 UTC

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

VulnCheck mitre root

References

5 references

URL	Tags
https://github.com/lfnovo/open-notebook/issues/1284	issue-tracking
https://github.com/lfnovo/open-notebook	product
https://github.com/lfnovo/open-notebook/blob/8889…	technical-description
https://github.com/lfnovo/open-notebook/commit/90…	patch
https://www.vulncheck.com/advisories/open-noteboo…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
lfnovo	open-notebook	Affected: 0 , < 1.11.0 (semver) cpe:2.3:a:lfnovo:open-notebook::::::::

Date Public

2026-08-26 00:00

Credits

George Chen

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-90769

Vulnerability from fkie_nvd - Published: 2026-09-13 11:17 - Updated: 2026-09-14 16:17

Severity

7.7 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://github.com/lfnovo/open-notebook
	disclosure@vulncheck.com	https://github.com/lfnovo/open-notebook/blob/8889087e317177d7b6e286342ab34e0c9c01d43e/api/routers/sources.py
	disclosure@vulncheck.com	https://github.com/lfnovo/open-notebook/commit/9045ea50196927eac7de647bb5b7009349236fb4
	disclosure@vulncheck.com	https://github.com/lfnovo/open-notebook/issues/1284
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/open-notebook-before-1.11.0-server-side-request-forgery-via-link-source
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/lfnovo/open-notebook/issues/1284

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/lfnovo/open-notebook/commit/9045ea50196927eac7de647bb5b7009349236fb4"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/lfnovo/open-notebook/issues/1284"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.vulncheck.com/advisories/open-notebook-before-1.11.0-server-side-request-forgery-via-link-source"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/lfnovo/open-notebook/issues/1284"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

GHSA-WR7P-6RRG-8M28

Vulnerability from github – Published: 2026-09-13 12:31 – Updated: 2026-09-13 12:31

Details

Severity

7.7 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

8.3 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-90769"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-13T11:17:01Z",
    "severity": "HIGH"
  },
  "details": "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\u0027s direct HTTP requests.",
  "id": "GHSA-wr7p-6rrg-8m28",
  "modified": "2026-09-13T12:31:11Z",
  "published": "2026-09-13T12:31:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90769"
    },
    {
      "type": "WEB",
      "url": "https://github.com/lfnovo/open-notebook/issues/1284"
    },
    {
      "type": "WEB",
      "url": "https://github.com/lfnovo/open-notebook/commit/9045ea50196927eac7de647bb5b7009349236fb4"
    },
    {
      "type": "WEB",
      "url": "https://github.com/lfnovo/open-notebook"
    },
    {
      "type": "WEB",
      "url": "https://github.com/lfnovo/open-notebook/blob/8889087e317177d7b6e286342ab34e0c9c01d43e/api/routers/sources.py"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/open-notebook-before-1.11.0-server-side-request-forgery-via-link-source"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-90769 (GCVE-0-2026-90769)

FKIE_CVE-2026-90769

GHSA-WR7P-6RRG-8M28

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Sightings

Nomenclature

Related by attack behaviour