TI-2025-29269 Aliases CVE-2025-46551 GHSA-72qj-48g4-5xgx

JRuby-OpenSSL has hostname verification disabled by default

MEDIUM 59CWE-295Published 2025-05-07 · Updated 2025-05-07

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Spoofing
Confidentiality · integrity · availability: None · High · None
Fix status: Partial Red Hat: 7 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-295.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00201 10th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Partial jruby-openssl (jruby): 0.15.4rubygems:jruby-openssl (Maven): 0.15.4+2 more productsRed Hat: 7 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
jruby	jruby-openssl	0.12.1 to before 0.15.4	0.15.4	Patch available	CNA
—	rubygems:jruby-openssl (Maven)	0.12.1 to before 0.15.4	0.15.4	Patch available	GHSA-72qj-48g4-5xgx
—	org.jruby:jruby (Maven)	10.0.0.0 to before 10.0.0.1	10.0.0.1	Patch available	GHSA-72qj-48g4-5xgx
—	org.jruby:jruby (Maven)	9.3.4.0 to before 9.4.12.1	9.4.12.1	Patch available	GHSA-72qj-48g4-5xgx
—	jruby-openssl (RubyGems)	0.12.1 to before 0.15.4	0.15.4	Patch available	GHSA-72qj-48g4-5xgx

jruby-openssl Vendorjruby Affected 0.12.1 to before 0.15.4 Fixed in 0.15.4 Patch available CNA
rubygems:jruby-openssl (Maven) Vendor— Affected 0.12.1 to before 0.15.4 Fixed in 0.15.4 Patch available GHSA-72qj-48g4-5xgx
org.jruby:jruby (Maven) Vendor— Affected 10.0.0.0 to before 10.0.0.1 Fixed in 10.0.0.1 Patch available GHSA-72qj-48g4-5xgx
org.jruby:jruby (Maven) Vendor— Affected 9.3.4.0 to before 9.4.12.1 Fixed in 9.4.12.1 Patch available GHSA-72qj-48g4-5xgx
jruby-openssl (RubyGems) Vendor— Affected 0.12.1 to before 0.15.4 Fixed in 0.15.4 Patch available GHSA-72qj-48g4-5xgx

CPE configurations NVD · 3

CPE	Versions	Role	Vendor
cpe:2.3:a:jruby:jruby::::::::	9.3.4.0 to before 9.4.12.1	Vulnerable	jruby
cpe:2.3:a:jruby:jruby:10.0.0.0:::::::*	10.0.0.0	Vulnerable	jruby
cpe:2.3:a:jruby:jruby-openssl::::::::	0.12.1 to before 0.15.4	Vulnerable	jruby

cpe:2.3:a:jruby:jruby:*:*:*:*:*:*:*:* Versions 9.3.4.0 to before 9.4.12.1 Vulnerable ·jruby
cpe:2.3:a:jruby:jruby:10.0.0.0:*:*:*:*:*:*:* Versions 10.0.0.0 Vulnerable ·jruby
cpe:2.3:a:jruby:jruby-openssl:*:*:*:*:*:*:*:* Versions 0.12.1 to before 0.15.4 Vulnerable ·jruby

Remediation

Fix · CNA jruby-openssl (jruby) Fixed in 0.15.4
Fix · GHSA-72qj-48g4-5xgx rubygems:jruby-openssl (Maven) Fixed in 0.15.4 Advisory →
Fix · GHSA-72qj-48g4-5xgx org.jruby:jruby (Maven) Fixed in 10.0.0.1 Advisory →
Fix · GHSA-72qj-48g4-5xgx org.jruby:jruby (Maven) Fixed in 9.4.12.1 Advisory →
Fix · GHSA-72qj-48g4-5xgx jruby-openssl (RubyGems) Fixed in 0.15.4 Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat AMQ Broker 7	Affected	No fix yet: Fix deferred
Red Hat Data Grid 8	Affected	No fix yet: Fix deferred
Red Hat Fuse 7	Affected	No fix planned: Out of support scope
Red Hat JBoss Enterprise Application Platform 8	Affected	No fix yet: Fix deferred
Red Hat JBoss Enterprise Application Platform Expansion Pack	Affected	No fix yet: Fix deferred
Red Hat Satellite 6	Affected	No fix yet: Fix deferred
Red Hat build of Apache Camel for Spring Boot 4	Affected	No fix yet: Fix deferred

Not affected: 8 products

Red Hat Integration Camel K 1
Red Hat JBoss Enterprise Application Platform 7
Red Hat JBoss Enterprise Application Platform 8
Red Hat JBoss Enterprise Application Platform Expansion Pack
Red Hat Process Automation 7
Red Hat build of OptaPlanner 8
Red Hat build of Quarkus
streams for Apache Kafka

Timeline

2026-10-02 Threatist record created from CVE-2025-46551
2026-10-03 Alias added: GHSA-72qj-48g4-5xgx

References

Other 3

TI-2011-04166 JRuby before 1.6.5.1 computes hash values without restricting the ability to trigger hash… CVSS 2.0MEDIUM 5.0
TI-2012-04543 JRuby computes hash values without properly restricting the ability to trigger hash… CVSS 2.0MEDIUM 5.0
TI-2010-01285 The regular expression engine in JRuby before 1.4.1, when $KCODE is set to 'u', does not… CVSS 2.0MEDIUM 4.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences