Vulnerability-Lookup

CVE-2026-40180 (GCVE-0-2026-40180)

Vulnerability from cvelistv5 – Published: 2026-04-10 19:35 – Updated: 2026-04-13 20:53

Title

Zip Slip Path Traversal in quarkus-openapi-generator ApicurioCodegenWrapper class

Summary

Quarkus OpenAPI Generator is Quarkus' extensions for generation of Rest Clients and server stubs generation. Prior to 2.16.0 and 2.15.0-lts, the unzip() method in ApicurioCodegenWrapper.java extracts ZIP entries without validating that the resolved file path stays within the intended output directory. At line 101, the destination is constructed as new File(toOutputDir, entry.getName()) and the content is written immediately. A malicious ZIP archive containing entries with path traversal sequences (e.g., ../../malicious.java) would write files outside the target directory. This vulnerability is fixed in 2.16.0 and 2.15.0-lts.

Severity

7.7 (High)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-13 20:53 UTC

CWE

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

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7711 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/quarkiverse/quarkus-openapi-ge…	x_refsource_CONFIRM
https://github.com/quarkiverse/quarkus-openapi-ge…	x_refsource_MISC
https://github.com/quarkiverse/quarkus-openapi-ge…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
quarkiverse	quarkus-openapi-generator	Affected: < 2.15.0-lts Affected: < 2.16.0	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-40180

Vulnerability from fkie_nvd - Published: 2026-04-10 20:16 - Updated: 2026-06-17 10:44

Severity

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

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/quarkiverse/quarkus-openapi-generator/commit/08b406414ff30ed192e86c7fa924e57565534ff0	Patch
security-advisories@github.com	https://github.com/quarkiverse/quarkus-openapi-generator/commit/e2a9c629a3df719abc74569a3795c265fd0e1239	Patch
security-advisories@github.com	https://github.com/quarkiverse/quarkus-openapi-generator/security/advisories/GHSA-jx2w-vp7f-456q	Exploit, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/quarkiverse/quarkus-openapi-generator/security/advisories/GHSA-jx2w-vp7f-456q	Exploit, Vendor Advisory

Impacted products

	Vendor	Product	Version
	quarkiverse	quarkus_openapi_generator	*
	quarkiverse	quarkus_openapi_generator	2.15.0

JSON

To clipboard

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  "lastModified": "2026-06-17T10:44:49.740",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 7.7,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "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": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/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": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-40180",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-04-13T20:53:43.210720Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-04-10T20:16:23.260",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/quarkiverse/quarkus-openapi-generator/commit/08b406414ff30ed192e86c7fa924e57565534ff0"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/quarkiverse/quarkus-openapi-generator/commit/e2a9c629a3df719abc74569a3795c265fd0e1239"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/quarkiverse/quarkus-openapi-generator/security/advisories/GHSA-jx2w-vp7f-456q"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/quarkiverse/quarkus-openapi-generator/security/advisories/GHSA-jx2w-vp7f-456q"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-JX2W-VP7F-456Q

Vulnerability from github – Published: 2026-04-08 19:14 – Updated: 2026-04-10 21:36

Summary

quarkus-openapi-generator extension has Zip Slip Path Traversal in ApicurioCodegenWrapper class

Details

Summary

A path traversal vulnerability was discovered in the quarkus-openapi-generator extension

Details

The unzip() method in ApicurioCodegenWrapper.java extracts ZIP entries without validating that the resolved file path stays within the intended output directory. At line 101, the destination is constructed as new File(toOutputDir, entry.getName()) and the content is written immediately. A malicious ZIP archive containing entries with path traversal sequences (e.g., ../../malicious.java) would write files outside the target directory.

The interesting thing is that the client module in the same repository already has the correct fix. OpenApiGeneratorStreamCodeGen.java at line 137 performs proper normalize() and startsWith() validation. The server module was simply missed.

PoC

This vulnerability is exploitable when an attacker controls or can intercept the ZIP archive served by the Apicurio registry. In environments where the registry connection is over an untrusted network or where TLS is not properly configured, exploitation becomes practical. The attack occurs at build/codegen time.

Create a ZIP file containing an entry named ../../proof.txt with arbitrary content
Configure quarkus-openapi-generator to use the server (Apicurio) code generation path
Serve the malicious ZIP from a controlled or MITM'd Apicurio registry endpoint
Trigger code generation
Observe that proof.txt is written two directories above the intended output

Impact

An attacker who can serve a crafted ZIP to the code generation pipeline could write arbitrary files on the build machine. This could overwrite source files, inject malicious code into the build output, or modify configuration files. In CI/CD environments, this could lead to supply chain compromise.

Severity

6.3 (Medium)


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

Show details on source website

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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.15.0"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "io.quarkiverse.openapi.generator:quarkus-openapi-generator"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.16.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-40180"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-08T19:14:32Z",
    "nvd_published_at": "2026-04-10T20:16:23Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\nA path traversal vulnerability was discovered in the quarkus-openapi-generator extension\n\n### Details\nThe `unzip()` method in `ApicurioCodegenWrapper.java` extracts ZIP entries without validating that the resolved file path stays within the intended output directory. At line 101, the destination is constructed as `new File(toOutputDir, entry.getName())` and the content is written immediately. A malicious ZIP archive containing entries with path traversal sequences (e.g., `../../malicious.java`) would write files outside the target directory.\n\nThe interesting thing is that the client module in the same repository already has the correct fix. `OpenApiGeneratorStreamCodeGen.java` at line 137 performs proper `normalize()` and `startsWith()` validation. The server module was simply missed.\n\n### PoC\nThis vulnerability is exploitable when an attacker controls or can intercept the ZIP archive served by the Apicurio registry. In environments where the registry connection is over an untrusted network or where TLS is not properly configured, exploitation becomes practical. The attack occurs at build/codegen time.\n\n1. Create a ZIP file containing an entry named `../../proof.txt` with arbitrary content\n2. Configure quarkus-openapi-generator to use the server (Apicurio) code generation path\n3. Serve the malicious ZIP from a controlled or MITM\u0027d Apicurio registry endpoint\n4. Trigger code generation\n5. Observe that `proof.txt` is written two directories above the intended output\n\n\n### Impact\nAn attacker who can serve a crafted ZIP to the code generation pipeline could write arbitrary files on the build machine. This could overwrite source files, inject malicious code into the build output, or modify configuration files. In CI/CD environments, this could lead to supply chain compromise.",
  "id": "GHSA-jx2w-vp7f-456q",
  "modified": "2026-04-10T21:36:53Z",
  "published": "2026-04-08T19:14:32Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/quarkiverse/quarkus-openapi-generator/security/advisories/GHSA-jx2w-vp7f-456q"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40180"
    },
    {
      "type": "WEB",
      "url": "https://github.com/quarkiverse/quarkus-openapi-generator/commit/08b406414ff30ed192e86c7fa924e57565534ff0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/quarkiverse/quarkus-openapi-generator/commit/e2a9c629a3df719abc74569a3795c265fd0e1239"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/quarkiverse/quarkus-openapi-generator"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "quarkus-openapi-generator extension has Zip Slip Path Traversal in ApicurioCodegenWrapper class"
}

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.

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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.
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Action not permitted

CVE-2026-40180 (GCVE-0-2026-40180)

FKIE_CVE-2026-40180

GHSA-JX2W-VP7F-456Q

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