Vulnerability-Lookup

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

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

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

CWE

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

Assigner

GitHub_M

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

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

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "quarkus-openapi-generator",
          "vendor": "quarkiverse",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.15.0-lts"
            },
            {
              "status": "affected",
              "version": "\u003c 2.16.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Quarkus OpenAPI Generator is Quarkus\u0027 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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-10T19:35:53.440Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/quarkiverse/quarkus-openapi-generator/security/advisories/GHSA-jx2w-vp7f-456q",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/quarkiverse/quarkus-openapi-generator/security/advisories/GHSA-jx2w-vp7f-456q"
        },
        {
          "name": "https://github.com/quarkiverse/quarkus-openapi-generator/commit/08b406414ff30ed192e86c7fa924e57565534ff0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/quarkiverse/quarkus-openapi-generator/commit/08b406414ff30ed192e86c7fa924e57565534ff0"
        },
        {
          "name": "https://github.com/quarkiverse/quarkus-openapi-generator/commit/e2a9c629a3df719abc74569a3795c265fd0e1239",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/quarkiverse/quarkus-openapi-generator/commit/e2a9c629a3df719abc74569a3795c265fd0e1239"
        }
      ],
      "source": {
        "advisory": "GHSA-jx2w-vp7f-456q",
        "discovery": "UNKNOWN"
      },
      "title": "Zip Slip Path Traversal in quarkus-openapi-generator ApicurioCodegenWrapper class"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-40180",
    "datePublished": "2026-04-10T19:35:53.440Z",
    "dateReserved": "2026-04-09T20:59:17.619Z",
    "dateUpdated": "2026-04-10T19:35:53.440Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-40180\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-04-10T20:16:23.260\",\"lastModified\":\"2026-04-10T20:16:23.260\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Quarkus OpenAPI Generator is Quarkus\u0027 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.\"}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"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\",\"baseScore\":7.7,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"NONE\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"PROOF_OF_CONCEPT\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-22\"}]}],\"references\":[{\"url\":\"https://github.com/quarkiverse/quarkus-openapi-generator/commit/08b406414ff30ed192e86c7fa924e57565534ff0\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/quarkiverse/quarkus-openapi-generator/commit/e2a9c629a3df719abc74569a3795c265fd0e1239\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/quarkiverse/quarkus-openapi-generator/security/advisories/GHSA-jx2w-vp7f-456q\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}

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

JSON

To clipboard

{
  "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

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.

Action not permitted

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

GHSA-JX2W-VP7F-456Q

Summary

Details

PoC

Impact

Tags

Sightings

Nomenclature