Vulnerability-Lookup

CVE-2026-92359 (GCVE-0-2026-92359)

Vulnerability from cvelistv5 – Published: 2026-09-16 12:00 – Updated: 2026-09-16 13:15 X_Open Source

Title

ag-ui-protocol ag-ui CORSMiddleware utils.py create_strands_app cross-domain policy

Summary

A security flaw has been discovered in ag-ui-protocol ag-ui 0.3.0. The affected element is the function create_strands_app of the file integrations/aws-strands/python/src/ag_ui_strands/utils.py of the component CORSMiddleware. The manipulation results in permissive cross-domain policy with untrusted domains. The attack may be launched remotely. The attack requires a high level of complexity. The exploitability is described as difficult. Upgrading to version AGUI.Abstractions@0.0.6 is sufficient to fix this issue. The patch is identified as 9b143b9668fa52c2054ede9d34a45ac4b4401089. It is suggested to upgrade the affected component.

Severity

2.3 (Low)


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

3.1 (Low)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C

3.1 (Low)


                        
                          CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-16 13:15 UTC

CWE

CWE-942 - Permissive Cross-domain Policy with Untrusted Domains
CWE-346 - Origin Validation Error

Assigner

VulDB mitre root

References

9 references

URL	Tags
https://vuldb.com/vuln/405445	vdb-entrytechnical-description
https://vuldb.com/vuln/405445/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-92359	third-party-advisory
https://vuldb.com/submit/934120	third-party-advisory
https://github.com/ag-ui-protocol/ag-ui/issues/2433	issue-tracking
https://github.com/ag-ui-protocol/ag-ui/pull/2492	issue-trackingpatch
https://github.com/ag-ui-protocol/ag-ui/commit/9b…	patch
https://github.com/ag-ui-protocol/ag-ui/releases/…	patch
https://github.com/ag-ui-protocol/ag-ui/	product

Impacted products

1 product

Vendor	Product	Version	CPE status
ag-ui-protocol	ag-ui	Affected: 0.3.0 Unaffected: AGUI.Abstractions@0.0.6 cpe:2.3:a:ag-ui-protocol:ag-ui::::::::

Credits

colorfullbz (VulDB User)

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-92359

Vulnerability from fkie_nvd - Published: 2026-09-16 13:18 - Updated: 2026-09-16 17:53

Severity

3.1 (Low) - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

Summary

References

	URL	Tags
	cna@vuldb.com	https://github.com/ag-ui-protocol/ag-ui/
	cna@vuldb.com	https://github.com/ag-ui-protocol/ag-ui/commit/9b143b9668fa52c2054ede9d34a45ac4b4401089
	cna@vuldb.com	https://github.com/ag-ui-protocol/ag-ui/issues/2433
	cna@vuldb.com	https://github.com/ag-ui-protocol/ag-ui/pull/2492
	cna@vuldb.com	https://github.com/ag-ui-protocol/ag-ui/releases/tag/AGUI.Abstractions%400.0.6
	cna@vuldb.com	https://vuldb.com/cve/CVE-2026-92359
	cna@vuldb.com	https://vuldb.com/submit/934120
	cna@vuldb.com	https://vuldb.com/vuln/405445
	cna@vuldb.com	https://vuldb.com/vuln/405445/cti

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:ag-ui-protocol:ag-ui:*:*:*:*:*:*:*:*"
          ],
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            "CORSMiddleware"
          ],
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          "vendor": "ag-ui-protocol",
          "versions": [
            {
              "status": "affected",
              "version": "0.3.0"
            },
            {
              "status": "unaffected",
              "version": "AGUI.Abstractions@0.0.6"
            }
          ]
        }
      ],
      "source": "cna@vuldb.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A security flaw has been discovered in ag-ui-protocol ag-ui 0.3.0. The affected element is the function create_strands_app of the file integrations/aws-strands/python/src/ag_ui_strands/utils.py of the component CORSMiddleware. The manipulation results in permissive cross-domain policy with untrusted domains. The attack may be launched remotely. The attack requires a high level of complexity. The exploitability is described as difficult. Upgrading to version AGUI.Abstractions@0.0.6 is sufficient to fix this issue. The patch is identified as 9b143b9668fa52c2054ede9d34a45ac4b4401089. It is suggested to upgrade the affected component."
    }
  ],
  "id": "CVE-2026-92359",
  "lastModified": "2026-09-16T17:53:40.500",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "HIGH",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 2.6,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:H/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 4.9,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "cna@vuldb.com",
        "type": "Secondary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 3.1,
          "baseSeverity": "LOW",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 1.4,
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "HIGH",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 2.3,
          "baseSeverity": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "PASSIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-92359",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-16T13:15:05.598960Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-16T13:18:08.873",
  "references": [
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/ag-ui-protocol/ag-ui/"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/ag-ui-protocol/ag-ui/commit/9b143b9668fa52c2054ede9d34a45ac4b4401089"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/ag-ui-protocol/ag-ui/issues/2433"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/ag-ui-protocol/ag-ui/pull/2492"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/ag-ui-protocol/ag-ui/releases/tag/AGUI.Abstractions%400.0.6"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/cve/CVE-2026-92359"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/submit/934120"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/405445"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/405445/cti"
    }
  ],
  "sourceIdentifier": "cna@vuldb.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-346"
        },
        {
          "lang": "en",
          "value": "CWE-942"
        }
      ],
      "source": "cna@vuldb.com",
      "type": "Secondary"
    }
  ]
}

GHSA-FQ29-84PR-2M3X

Vulnerability from github – Published: 2026-09-16 15:31 – Updated: 2026-09-16 15:31

Details

Severity

3.1 (Low)


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

2.3 (Low)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-92359"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-346"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-16T13:18:08Z",
    "severity": "LOW"
  },
  "details": "A security flaw has been discovered in ag-ui-protocol ag-ui 0.3.0. The affected element is the function create_strands_app of the file integrations/aws-strands/python/src/ag_ui_strands/utils.py of the component CORSMiddleware. The manipulation results in permissive cross-domain policy with untrusted domains. The attack may be launched remotely. The attack requires a high level of complexity. The exploitability is described as difficult. Upgrading to version AGUI.Abstractions@0.0.6 is sufficient to fix this issue. The patch is identified as 9b143b9668fa52c2054ede9d34a45ac4b4401089. It is suggested to upgrade the affected component.",
  "id": "GHSA-fq29-84pr-2m3x",
  "modified": "2026-09-16T15:31:10Z",
  "published": "2026-09-16T15:31:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-92359"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ag-ui-protocol/ag-ui/issues/2433"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ag-ui-protocol/ag-ui/pull/2492"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ag-ui-protocol/ag-ui/commit/9b143b9668fa52c2054ede9d34a45ac4b4401089"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ag-ui-protocol/ag-ui"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ag-ui-protocol/ag-ui/releases/tag/AGUI.Abstractions%400.0.6"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-92359"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/934120"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/405445"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/405445/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/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.

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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-2026-92359 (GCVE-0-2026-92359)

FKIE_CVE-2026-92359

GHSA-FQ29-84PR-2M3X

Tags

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Nomenclature

Related by attack behaviour