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Description

joi is a schema description language and data validator for JavaScript. Prior to 17.13.4 and 18.2.1, denial of service is possible via an untrapped exception in services validating user-supplied JSON or object input with recursive link() schemas. When validate() is called without try/catch in a request handler, deeply nested input can trigger an unhandled RangeError and potentially crash the process; lower-impact paths using validateAsync() or try/catch produce a RangeError instead of a structured ValidationError. This issue is fixed in versions 17.13.4 and 18.2.1.

PUBLISHED Reserved 2026-05-20 | Published 2026-07-14 | Updated 2026-07-14 | Assigner GitHub_M




MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Problem types

CWE-248: Uncaught Exception

Product status

< 17.13.4
affected

>= 18.0.0, < 18.2.1
affected

References

github.com/...js/joi/security/advisories/GHSA-q7cg-457f-vx79

github.com/hapijs/joi/pull/3113

github.com/...ommit/97bd51de94d595a2d8949eb3bec0dbdd2f8a7a74

github.com/...ommit/fc146a628ab9cc250854407722d9f8738c9548e7

cve.org (CVE-2026-48038)

nvd.nist.gov (CVE-2026-48038)

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