CVE-2026-48038

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.

CVSS 3.1

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

EPSS

0.5% chance of exploitation in the next 30 days; higher than 44% of CVEs (scores of 2026-10-25)

CWE

CWE-248

Published

2026-07-14

Modified

2026-10-24

Record from

the NVD, synced 2026-10-25

Packages (OSV)

References

• https://github.com/hapijs/joi/commit/97bd51de94d595a2d8949eb3bec0dbdd2f8a7a74
• https://github.com/hapijs/joi/commit/fc146a628ab9cc250854407722d9f8738c9548e7
• https://github.com/hapijs/joi/pull/3113
• https://github.com/hapijs/joi/security/advisories/GHSA-q7cg-457f-vx79

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