CVE-2025-46551

Description

JRuby-OpenSSL is an add-on gem for JRuby that emulates the Ruby OpenSSL native library. Starting in JRuby-OpenSSL version 0.12.1 and prior to version 0.15.4 (corresponding to JRuby versions starting in 9.3.4.0 prior to 9.4.12.1 and 10.0.0.0 prior to 10.0.0.1), when verifying SSL certificates, JRuby-OpenSSL does not verify that the hostname presented in the certificate matches the one the user tries to connect to. This means a man-in-the-middle could just present any valid cert for a completely different domain they own, and JRuby would accept the cert. Anybody using JRuby to make requests of external APIs, or scraping the web, that depends on https to connect securely. JRuby-OpenSSL version 0.15.4 contains a fix for the issue. This fix is included in JRuby versions 10.0.0.1 and 9.4.12.1.

Reserved 2025-04-24 | Published 2025-05-07 | Updated 2025-05-07 | Assigner GitHub_M

Problem types

CWE-295: Improper Certificate Validation

Product status

>= 0.12.1, < 0.15.4
affected

References

github.com/...penssl/security/advisories/GHSA-72qj-48g4-5xgx

github.com/...ommit/31a56d690ce9b8af47af09aaaf809081949ed285

cve.org (CVE-2025-46551)

nvd.nist.gov (CVE-2025-46551)

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