Staging Environment: Content and features may be unstable or change without notice.
Advisory details: gitlab / maven/org.jruby/jruby/CVE-2025-46551
Advisory ID gitlab/maven/org.jruby/jruby/CVE-2025-46551
Aliases CVE-2025-46551
GHSA-72qj-48g4-5xgx
Summary JRuby-OpenSSL has hostname verification disabled by default When verifying SSL certificates, jruby-openssl is not verifying that the hostname presented in the certificate matches the one we are trying to connect to, meaning a MITM could just present _any_ valid cert for a completely different domain they own, and JRuby wouldn't complain.
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (4)
CWE-297 Improper Validation of Certificate with Host Mismatch
CWE-295 Improper Certificate Validation
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3.1 https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/org.jruby/jruby/CVE-2025-46551.yml
Reference id Reference type URL
https://github.com/jruby/jruby-openssl
https://github.com/jruby/jruby-openssl/commit/31a56d690ce9b8af47af09aaaf809081949ed285
https://github.com/jruby/jruby-openssl/commit/b1fc5d645c0d90891b8865925ac1c15e3f15a055
CVE-2025-46551 https://nvd.nist.gov/vuln/detail/CVE-2025-46551
CVE-2025-46551.YML https://github.com/rubysec/ruby-advisory-db/blob/master/gems/jruby-openssl/CVE-2025-46551.yml
GHSA-72qj-48g4-5xgx https://github.com/advisories/GHSA-72qj-48g4-5xgx
GHSA-72qj-48g4-5xgx https://github.com/jruby/jruby-openssl/security/advisories/GHSA-72qj-48g4-5xgx
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N Found at https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/org.jruby/jruby/CVE-2025-46551.yml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-05-07T20:15:30Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2025/46xxx/CVE-2025-46551.json

Source Advisory: vulnrichment/CVE-2025-46551

View SSVC decision tree 
[{'Exploitation': 'poc'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]