CriticalFix available
jruby, rubygems — security advisory
RubyGems version Ruby 2.2 series: 2.2.9 and earlier, Ruby 2.3 series: 2.3.6 and earlier, Ruby 2.4 series: 2.4.3 and earlier, Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contains a Improper Verification of Cryptographic Signature vulnerability in package.rb that can result in a mis-signed gem could be installed, as the tarball would contain multiple gem signatures.. This vulnerability appears to have been fixed in 2.7.6.
- Products
- jruby, rubygems
- Affected versions
- Not specified
- Fixed versions
- 3.2.0~rc.1-1, 9.1.17.0-1
- CVEs
- CVE-2018-1000076
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 01:29 UTC · Revision 1
Source evidence
RubyGems version Ruby 2.2 series: 2.2.9 and earlier, Ruby 2.3 series: 2.3.6 and earlier, Ruby 2.4 series: 2.4.3 and earlier, Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contains a Improper Verification of Cryptographic Signature vulnerability in package.rb that can result in a mis-signed gem could be installed, as the tarball would contain multiple gem signatures.. This vulnerability appears to have been fixed in 2.7.6.
osv:DEBIAN-CVE-2018-1000076
jruby
Fixed versions: 9.1.17.0-1
jruby
Fixed versions: 9.1.17.0-1
jruby
Fixed versions: 9.1.17.0-1
rubygems
Fixed versions: 3.2.0~rc.1-1
rubygems
Fixed versions: 3.2.0~rc.1-1
rubygems
Fixed versions: 3.2.0~rc.1-1
Complete source record
{
"id": "b96f354a78283f0a1ba44420865ede7d93897f2b5b5625bd1e334c65da5c1d07",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2018-1000076",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2018-1000076",
"summary": "RubyGems version Ruby 2.2 series: 2.2.9 and earlier, Ruby 2.3 series: 2.3.6 and earlier, Ruby 2.4 series: 2.4.3 and earlier, Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contains a Improper Verification of Cryptographic Signature vulnerability in package.rb that can result in a mis-signed gem could be installed, as the tarball would contain multiple gem signatures.. This vulnerability appears to have been fixed in 2.7.6.",
"evidence": "osv:DEBIAN-CVE-2018-1000076",
"products": [
{
"name": {
"value": "jruby",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.1.17.0-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "jruby",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.1.17.0-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "jruby",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.1.17.0-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "rubygems",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.2.0~rc.1-1",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "rubygems",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.2.0~rc.1-1",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "rubygems",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.2.0~rc.1-1",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
}
],
"severity": "critical",
"structured": {
"id": "DEBIAN-CVE-2018-1000076",
"aliases": [
"DEBIAN-CVE-2018-1000076"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "9.1.17.0-1"
}
]
}
],
"package": {
"name": "jruby",
"purl": "pkg:deb/debian/jruby?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-1000076.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "9.1.17.0-1"
}
]
}
],
"package": {
"name": "jruby",
"purl": "pkg:deb/debian/jruby?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-1000076.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "9.1.17.0-1"
}
]
}
],
"package": {
"name": "jruby",
"purl": "pkg:deb/debian/jruby?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-1000076.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.2.0~rc.1-1"
}
]
}
],
"package": {
"name": "rubygems",
"purl": "pkg:deb/debian/rubygems?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-1000076.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.2.0~rc.1-1"
}
]
}
],
"package": {
"name": "rubygems",
"purl": "pkg:deb/debian/rubygems?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-1000076.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.2.0~rc.1-1"
}
]
}
],
"package": {
"name": "rubygems",
"purl": "pkg:deb/debian/rubygems?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-1000076.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T18:04:46.540521903Z",
"provider": "osv",
"upstream": [
"CVE-2018-1000076"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2018-1000076"
]
},
"related_cves": [
{
"value": "CVE-2018-1000076",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 423684,
"published_at": "2018-03-13T15:29:00.613+00:00"
}