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Vulnerability record · CVE-2026-40180 · published 10 April 2026

CVE-2026-40180: Quarkiverse quarkus openapi generator path traversal vulnerability

Quarkiverse · Quarkus Openapi Generator

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.

7.7 CVSS 4.0 High EPSS 0.51% · top 58.7% CWE-22 · Path traversal
7.7CVSS 4.0 base score
0.51%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

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:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/quarkiverse/quarkus-openapi-generator/commit/08b406414ff30ed192e86c7fa924e57565534ff0 Patch
https://github.com/quarkiverse/quarkus-openapi-generator/commit/e2a9c629a3df719abc74569a3795c265fd0e1239 Patch
https://github.com/quarkiverse/quarkus-openapi-generator/security/advisories/GHSA-jx2w-vp7f-456q ExploitVendor Advisory
https://github.com/quarkiverse/quarkus-openapi-generator/security/advisories/GHSA-jx2w-vp7f-456q ExploitVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-40180), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.