Path Traversal in Quarkiverse Quarkus-Openapi-Generator
CVE-2026-40180
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.005 (41.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.001
Affected products
- Quarkiverse Quarkus-Openapi-Generator — versions < 2.15.0-lts, < 2.16.0
- Quarkiverse Quarkus Openapi Generator — versions 2.15.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-40180?
- CVE-2026-40180 is a high-severity vulnerability in Quarkiverse Quarkus-Openapi-Generator, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-04-10.
- How severe is CVE-2026-40180?
- High severity. CVSS v3 base score is 7.5 out of 10.