Vulnerability-Lookup

CVE-2026-22661 (GCVE-0-2026-22661)

Vulnerability from cvelistv5 – Published: 2026-04-03 20:26 – Updated: 2026-07-14 15:53

Title

prompts.chat Path Traversal via Skill File Handling

Summary

prompts.chat prior to commit 0f8d4c3 contains a path traversal vulnerability in skill file handling that allows attackers to write arbitrary files to the client system by crafting malicious ZIP archives with unsanitized filenames containing path traversal sequences. Attackers can exploit missing server-side filename validation to inject path traversal sequences ../ into skill file archives, which when extracted by vulnerable tools writing files outside the intended directory and overwriting shell initialization files to achieve code execution.

Severity

8.6 (High)


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

8.1 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

VulnCheck

References

3 references

URL	Tags
https://github.com/f/prompts.chat/pull/1101	issue-tracking
https://github.com/f/prompts.chat/commit/0f8d4c38…	patch
https://www.vulncheck.com/advisories/prompts-chat…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
f	prompts.chat	Affected: 0 , < 0f8d4c381abd7b2d7478c9fdee9522149c2d65e5 (git)

Credits

Mehmet Ince @mdisec

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-22661

Vulnerability from fkie_nvd - Published: 2026-04-03 21:17 - Updated: 2026-07-14 16:16

Severity

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

Summary

References

URL	Tags
disclosure@vulncheck.com	https://github.com/f/prompts.chat/commit/0f8d4c381abd7b2d7478c9fdee9522149c2d65e5	Patch
disclosure@vulncheck.com	https://github.com/f/prompts.chat/pull/1101	Issue Tracking, Patch, Vendor Advisory
disclosure@vulncheck.com	https://www.vulncheck.com/advisories/prompts-chat-path-traversal-via-skill-file-handling	Third Party Advisory

Impacted products

	Vendor	Product	Version
	fka	prompts.chat	*

JSON

To clipboard

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          "userInteraction": "PASSIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/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": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-22661",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-04-06T15:54:55.303959Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-04-03T21:17:08.970",
  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/f/prompts.chat/commit/0f8d4c381abd7b2d7478c9fdee9522149c2d65e5"
    },
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://github.com/f/prompts.chat/pull/1101"
    },
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.vulncheck.com/advisories/prompts-chat-path-traversal-via-skill-file-handling"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

GHSA-3PWG-7Q4V-JFF5

Vulnerability from github – Published: 2026-04-03 21:31 – Updated: 2026-04-03 21:31

Details

prompts.chat prior to commit 0f8d4c3 contains a path traversal vulnerability in skill file handling that allows attackers to write arbitrary files to the client system by crafting malicious ZIP archives with unsanitized filenames containing path traversal sequences. Attackers can exploit missing server-side filename validation to inject path traversal sequences ../ into skill file archives, which when extracted by vulnerable tools write files outside the intended directory and overwrite shell initialization files to achieve code execution.

Severity

8.1 (High)


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

8.6 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-22661"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-03T21:17:08Z",
    "severity": "HIGH"
  },
  "details": "prompts.chat prior to commit 0f8d4c3 contains a path traversal vulnerability in skill file handling that allows attackers to write arbitrary files to the client system by crafting malicious ZIP archives with unsanitized filenames containing path traversal sequences. Attackers can exploit missing server-side filename validation to inject path traversal sequences ../ into skill file archives, which when extracted by vulnerable tools write files outside the intended directory and overwrite shell initialization files to achieve code execution.",
  "id": "GHSA-3pwg-7q4v-jff5",
  "modified": "2026-04-03T21:31:42Z",
  "published": "2026-04-03T21:31:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-22661"
    },
    {
      "type": "WEB",
      "url": "https://github.com/f/prompts.chat/pull/1101"
    },
    {
      "type": "WEB",
      "url": "https://github.com/f/prompts.chat/commit/0f8d4c381abd7b2d7478c9fdee9522149c2d65e5"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/prompts-chat-path-traversal-via-skill-file-handling"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/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.

Action not permitted

CVE-2026-22661 (GCVE-0-2026-22661)

FKIE_CVE-2026-22661

GHSA-3PWG-7Q4V-JFF5

Tags

Sightings

Nomenclature