Vulnerability-Lookup

CVE-2026-81560 (GCVE-0-2026-81560)

Vulnerability from cvelistv5 – Published: 2026-08-27 10:30 – Updated: 2026-08-29 02:56

Title

blackms aistack Static File server.ts path traversal

Summary

A vulnerability was identified in blackms aistack up to 1.6.1. Affected by this issue is some unknown functionality of the file src/web/server.ts of the component Static File Handler. Such manipulation of the argument req.url leads to path traversal. The attack can be executed remotely. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.

Severity

6.9 (Medium)


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

5.3 (Medium)


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

5.3 (Medium)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-29 02:56 UTC

CWE

CWE-22 - Path Traversal

Assigner

VulDB mitre root

References

6 references

URL	Tags
https://vuldb.com/vuln/396057	vdb-entrytechnical-description
https://vuldb.com/vuln/396057/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-81560	third-party-advisory
https://vuldb.com/submit/887140	third-party-advisory
https://github.com/blackms/aistack/issues/57	exploitissue-tracking
https://github.com/blackms/aistack/	product

Impacted products

1 product

Vendor	Product	Version	CPE status
blackms	aistack	Affected: 1.6.0 Affected: 1.6.1 cpe:2.3:a:blackms:aistack::::::::

Credits

cccccccti (VulDB User) VulDB CNA Team

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-81560

Vulnerability from fkie_nvd - Published: 2026-08-27 13:18 - Updated: 2026-08-29 03:17

Severity

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Summary

References

	URL	Tags
	cna@vuldb.com	https://github.com/blackms/aistack/
	cna@vuldb.com	https://github.com/blackms/aistack/issues/57
	cna@vuldb.com	https://vuldb.com/cve/CVE-2026-81560
	cna@vuldb.com	https://vuldb.com/submit/887140
	cna@vuldb.com	https://vuldb.com/vuln/396057
	cna@vuldb.com	https://vuldb.com/vuln/396057/cti

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
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    {
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          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/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-2026-81560",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-29T02:56:19.616745Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-27T13:18:41.497",
  "references": [
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/blackms/aistack/"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/blackms/aistack/issues/57"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/cve/CVE-2026-81560"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/submit/887140"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/396057"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/396057/cti"
    }
  ],
  "sourceIdentifier": "cna@vuldb.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "cna@vuldb.com",
      "type": "Secondary"
    }
  ]
}

GHSA-RXCF-VRWM-22VH

Vulnerability from github – Published: 2026-08-27 15:31 – Updated: 2026-08-27 15:31

Details

Severity

5.3 (Medium)


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

5.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-81560"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-27T13:18:41Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability was identified in blackms aistack up to 1.6.1. Affected by this issue is some unknown functionality of the file src/web/server.ts of the component Static File Handler. Such manipulation of the argument req.url leads to path traversal. The attack can be executed remotely. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.",
  "id": "GHSA-rxcf-vrwm-22vh",
  "modified": "2026-08-27T15:31:35Z",
  "published": "2026-08-27T15:31:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-81560"
    },
    {
      "type": "WEB",
      "url": "https://github.com/blackms/aistack/issues/57"
    },
    {
      "type": "WEB",
      "url": "https://github.com/blackms/aistack"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-81560"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/887140"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/396057"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/396057/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/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.

Action not permitted

CVE-2026-81560 (GCVE-0-2026-81560)

FKIE_CVE-2026-81560

GHSA-RXCF-VRWM-22VH

Tags

Sightings

Nomenclature