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Purlpkg:deb/debian/ruby-webrick@1.9.1-1?distro=trixie
Typedeb
Namespacedebian
Nameruby-webrick
Version1.9.1-1
Qualifiers
distro trixie
Subpath
Is_vulnerablefalse
Next_non_vulnerable_version1.9.2-1
Latest_non_vulnerable_version1.9.2-1
Affected_by_vulnerabilities
Fixing_vulnerabilities
0
url VCID-3wgz-s6g4-n3fk
vulnerability_id VCID-3wgz-s6g4-n3fk
summary 
HTTP Request Smuggling in ruby webrick
An issue was discovered in the WEBrick toolkit through 1.8.1 for Ruby. It allows HTTP request smuggling by providing both a Content-Length header and a Transfer-Encoding header, e.g., "GET /admin HTTP/1.1\r\n" inside of a "POST /user HTTP/1.1\r\n" request. NOTE: the supplier's position is "Webrick should not be used in production."
references
0
reference_url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2024-47220.json
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2024-47220.json
1
reference_url https://api.first.org/data/v1/epss?cve=CVE-2024-47220
reference_id
reference_type
scores
0
value 0.00108
scoring_system epss
scoring_elements 0.29018
published_at 2026-04-18T12:55:00Z
1
value 0.00108
scoring_system epss
scoring_elements 0.29041
published_at 2026-04-16T12:55:00Z
2
value 0.00108
scoring_system epss
scoring_elements 0.29015
published_at 2026-04-13T12:55:00Z
3
value 0.00108
scoring_system epss
scoring_elements 0.29066
published_at 2026-04-12T12:55:00Z
4
value 0.00108
scoring_system epss
scoring_elements 0.2911
published_at 2026-04-11T12:55:00Z
5
value 0.00108
scoring_system epss
scoring_elements 0.29105
published_at 2026-04-09T12:55:00Z
6
value 0.00108
scoring_system epss
scoring_elements 0.29062
published_at 2026-04-08T12:55:00Z
7
value 0.00108
scoring_system epss
scoring_elements 0.28998
published_at 2026-04-07T12:55:00Z
8
value 0.00108
scoring_system epss
scoring_elements 0.29189
published_at 2026-04-04T12:55:00Z
9
value 0.00108
scoring_system epss
scoring_elements 0.29139
published_at 2026-04-02T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2024-47220
2
reference_url https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
reference_id
reference_type
scores
0
value 8.2
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
url https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
3
reference_url https://github.com/advisories/GHSA-6f62-3596-g6w7
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3
scoring_elements
1
value HIGH
scoring_system cvssv3.1_qr
scoring_elements
url https://github.com/advisories/GHSA-6f62-3596-g6w7
4
reference_url https://github.com/rubysec/ruby-advisory-db/blob/master/gems/webrick/CVE-2024-47220.yml
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
1
value HIGH
scoring_system generic_textual
scoring_elements
url https://github.com/rubysec/ruby-advisory-db/blob/master/gems/webrick/CVE-2024-47220.yml
5
reference_url https://github.com/ruby/webrick
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
1
value HIGH
scoring_system generic_textual
scoring_elements
url https://github.com/ruby/webrick
6
reference_url https://github.com/ruby/webrick/commit/f5faca9222541591e1a7c3c97552ebb0c92733c7
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
1
value HIGH
scoring_system generic_textual
scoring_elements
url https://github.com/ruby/webrick/commit/f5faca9222541591e1a7c3c97552ebb0c92733c7
7
reference_url https://github.com/ruby/webrick/issues/145
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
1
value HIGH
scoring_system generic_textual
scoring_elements
2
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2024-09-23T15:01:28Z/
url https://github.com/ruby/webrick/issues/145
8
reference_url https://github.com/ruby/webrick/issues/145#issuecomment-2369994610
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
1
value HIGH
scoring_system generic_textual
scoring_elements
2
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2024-09-23T15:01:28Z/
url https://github.com/ruby/webrick/issues/145#issuecomment-2369994610
9
reference_url https://github.com/ruby/webrick/issues/145#issuecomment-2372838285
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
1
value HIGH
scoring_system generic_textual
scoring_elements
2
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2024-09-23T15:01:28Z/
url https://github.com/ruby/webrick/issues/145#issuecomment-2372838285
10
reference_url https://github.com/ruby/webrick/pull/146/commits/d88321da45dcd230ac2b4585cad4833d6d5e8841
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
1
value HIGH
scoring_system generic_textual
scoring_elements
2
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2024-09-23T15:01:28Z/
url https://github.com/ruby/webrick/pull/146/commits/d88321da45dcd230ac2b4585cad4833d6d5e8841
11
reference_url https://nvd.nist.gov/vuln/detail/CVE-2024-47220
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
1
value HIGH
scoring_system generic_textual
scoring_elements
url https://nvd.nist.gov/vuln/detail/CVE-2024-47220
12
reference_url https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1082633
reference_id 1082633
reference_type
scores
url https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1082633
13
reference_url https://bugzilla.redhat.com/show_bug.cgi?id=2314051
reference_id 2314051
reference_type
scores
url https://bugzilla.redhat.com/show_bug.cgi?id=2314051
14
reference_url https://access.redhat.com/errata/RHSA-2025:1227
reference_id RHSA-2025:1227
reference_type
scores
url https://access.redhat.com/errata/RHSA-2025:1227
15
reference_url https://usn.ubuntu.com/7057-1/
reference_id USN-7057-1
reference_type
scores
url https://usn.ubuntu.com/7057-1/
16
reference_url https://usn.ubuntu.com/7057-2/
reference_id USN-7057-2
reference_type
scores
url https://usn.ubuntu.com/7057-2/
17
reference_url https://usn.ubuntu.com/7840-1/
reference_id USN-7840-1
reference_type
scores
url https://usn.ubuntu.com/7840-1/
fixed_packages
0
url pkg:deb/debian/ruby-webrick@1.9.1-1?distro=trixie
purl pkg:deb/debian/ruby-webrick@1.9.1-1?distro=trixie
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-webrick@1.9.1-1%3Fdistro=trixie
1
url pkg:deb/debian/ruby-webrick@1.9.2-1?distro=trixie
purl pkg:deb/debian/ruby-webrick@1.9.2-1?distro=trixie
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-webrick@1.9.2-1%3Fdistro=trixie
aliases CVE-2024-47220, GHSA-6f62-3596-g6w7
risk_score 4.0
exploitability 0.5
weighted_severity 8.0
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-3wgz-s6g4-n3fk
1
url VCID-pay9-phaz-bbde
vulnerability_id VCID-pay9-phaz-bbde
summary 
Ruby WEBrick read_headers method can lead to HTTP Request/Response Smuggling
Ruby WEBrick read_header HTTP Request Smuggling Vulnerability. This vulnerability allows remote attackers to smuggle arbitrary HTTP requests on affected installations of Ruby WEBrick. This issue is exploitable when the product is deployed behind an HTTP proxy that fulfills specific conditions.

The specific flaw exists within the read_headers method. The issue results from the inconsistent parsing of terminators of HTTP headers. An attacker can leverage this vulnerability to smuggle arbitrary HTTP requests. Was ZDI-CAN-21876.
references
0
reference_url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-6442.json
reference_id
reference_type
scores
0
value 6.5
scoring_system cvssv3
scoring_elements CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-6442.json
1
reference_url https://api.first.org/data/v1/epss?cve=CVE-2025-6442
reference_id
reference_type
scores
0
value 0.00074
scoring_system epss
scoring_elements 0.22414
published_at 2026-04-18T12:55:00Z
1
value 0.00074
scoring_system epss
scoring_elements 0.22417
published_at 2026-04-16T12:55:00Z
2
value 0.00074
scoring_system epss
scoring_elements 0.22399
published_at 2026-04-13T12:55:00Z
3
value 0.00074
scoring_system epss
scoring_elements 0.22454
published_at 2026-04-12T12:55:00Z
4
value 0.00074
scoring_system epss
scoring_elements 0.22551
published_at 2026-04-04T12:55:00Z
5
value 0.00074
scoring_system epss
scoring_elements 0.22495
published_at 2026-04-11T12:55:00Z
6
value 0.00074
scoring_system epss
scoring_elements 0.22476
published_at 2026-04-09T12:55:00Z
7
value 0.00074
scoring_system epss
scoring_elements 0.22508
published_at 2026-04-02T12:55:00Z
8
value 0.00074
scoring_system epss
scoring_elements 0.22421
published_at 2026-04-08T12:55:00Z
9
value 0.00074
scoring_system epss
scoring_elements 0.2234
published_at 2026-04-07T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2025-6442
2
reference_url https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
reference_id
reference_type
scores
0
value 6.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
url https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
3
reference_url https://github.com/advisories/GHSA-r995-q44h-hr64
reference_id
reference_type
scores
0
value 6.5
scoring_system cvssv3
scoring_elements
1
value MODERATE
scoring_system cvssv3.1_qr
scoring_elements
url https://github.com/advisories/GHSA-r995-q44h-hr64
4
reference_url https://github.com/rubysec/ruby-advisory-db/blob/master/gems/webrick/CVE-2025-6442.yml
reference_id
reference_type
scores
0
value 6.5
scoring_system cvssv3.1
scoring_elements CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://github.com/rubysec/ruby-advisory-db/blob/master/gems/webrick/CVE-2025-6442.yml
5
reference_url https://github.com/ruby/webrick
reference_id
reference_type
scores
0
value 6.5
scoring_system cvssv3.1
scoring_elements CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://github.com/ruby/webrick
6
reference_url https://github.com/ruby/webrick/commit/ee60354bcb84ec33b9245e1d1aa6e1f7e8132101#diff-ad02984d873efb089aa51551bc6b7d307a53e0ba1ac439e91d69c2e58a478864
reference_id
reference_type
scores
0
value 6.5
scoring_system cvssv3
scoring_elements CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
1
value 6.5
scoring_system cvssv3.1
scoring_elements CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
2
value MODERATE
scoring_system generic_textual
scoring_elements
3
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-06-25T20:41:55Z/
url https://github.com/ruby/webrick/commit/ee60354bcb84ec33b9245e1d1aa6e1f7e8132101#diff-ad02984d873efb089aa51551bc6b7d307a53e0ba1ac439e91d69c2e58a478864
7
reference_url https://nvd.nist.gov/vuln/detail/CVE-2025-6442
reference_id
reference_type
scores
0
value 6.5
scoring_system cvssv3.1
scoring_elements CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://nvd.nist.gov/vuln/detail/CVE-2025-6442
8
reference_url https://www.zerodayinitiative.com/advisories/ZDI-25-414
reference_id
reference_type
scores
0
value 6.5
scoring_system cvssv3.1
scoring_elements CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://www.zerodayinitiative.com/advisories/ZDI-25-414
9
reference_url https://bugzilla.redhat.com/show_bug.cgi?id=2374895
reference_id 2374895
reference_type
scores
url https://bugzilla.redhat.com/show_bug.cgi?id=2374895
10
reference_url https://usn.ubuntu.com/7709-1/
reference_id USN-7709-1
reference_type
scores
url https://usn.ubuntu.com/7709-1/
11
reference_url https://usn.ubuntu.com/7840-1/
reference_id USN-7840-1
reference_type
scores
url https://usn.ubuntu.com/7840-1/
12
reference_url https://www.zerodayinitiative.com/advisories/ZDI-25-414/
reference_id ZDI-25-414
reference_type
scores
0
value 6.5
scoring_system cvssv3
scoring_elements CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
1
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-06-25T20:41:55Z/
url https://www.zerodayinitiative.com/advisories/ZDI-25-414/
fixed_packages
0
url pkg:deb/debian/ruby-webrick@1.9.1-1?distro=trixie
purl pkg:deb/debian/ruby-webrick@1.9.1-1?distro=trixie
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-webrick@1.9.1-1%3Fdistro=trixie
1
url pkg:deb/debian/ruby-webrick@1.9.2-1?distro=trixie
purl pkg:deb/debian/ruby-webrick@1.9.2-1?distro=trixie
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-webrick@1.9.2-1%3Fdistro=trixie
aliases CVE-2025-6442, GHSA-r995-q44h-hr64
risk_score 3.1
exploitability 0.5
weighted_severity 6.2
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-pay9-phaz-bbde
Risk_scorenull
Resource_urlhttp://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-webrick@1.9.1-1%3Fdistro=trixie