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Vulnerability Instance

Lookup for vulnerabilities affecting packages.

Vulnerability_idVCID-wvs1-dhwp-ebat
SummaryRack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Multipart::Parser extracts the boundary parameter from multipart/form-data using a greedy regular expression. When a Content-Type header contains multiple boundary parameters, Rack selects the last one rather than the first. In deployments where an upstream proxy, WAF, or intermediary interprets the first boundary parameter, this mismatch can allow an attacker to smuggle multipart content past upstream inspection and have Rack parse a different body structure than the intermediary validated. This issue has been patched in versions 2.2.23, 3.1.21, and 3.2.6.
Aliases
0
alias CVE-2026-26961
1
alias GHSA-vgpv-f759-9wx3
Fixed_packages
0
url pkg:deb/debian/ruby-rack@2.2.22-0%2Bdeb12u1
purl pkg:deb/debian/ruby-rack@2.2.22-0%2Bdeb12u1
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-rack@2.2.22-0%252Bdeb12u1
1
url pkg:deb/debian/ruby-rack@3.1.20-0%2Bdeb13u1
purl pkg:deb/debian/ruby-rack@3.1.20-0%2Bdeb13u1
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-rack@3.1.20-0%252Bdeb13u1
2
url pkg:deb/debian/ruby-rack@3.2.6-2?distro=trixie
purl pkg:deb/debian/ruby-rack@3.2.6-2?distro=trixie
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-rack@3.2.6-2%3Fdistro=trixie
3
url pkg:deb/debian/ruby-rack@3.2.6-2
purl pkg:deb/debian/ruby-rack@3.2.6-2
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-rack@3.2.6-2
4
url pkg:gem/rack@2.2.23
purl pkg:gem/rack@2.2.23
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:gem/rack@2.2.23
5
url pkg:gem/rack@3.1.21
purl pkg:gem/rack@3.1.21
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:gem/rack@3.1.21
6
url pkg:gem/rack@3.2.6
purl pkg:gem/rack@3.2.6
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:gem/rack@3.2.6
Affected_packages
0
url pkg:deb/debian/ruby-rack@2.1.4-3%2Bdeb11u2?distro=trixie
purl pkg:deb/debian/ruby-rack@2.1.4-3%2Bdeb11u2?distro=trixie
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-1j61-5e8x-7fbd
1
vulnerability VCID-2p73-rc9t-rudb
2
vulnerability VCID-2qba-a6bp-ryak
3
vulnerability VCID-5twm-pqc2-xyfn
4
vulnerability VCID-dh75-6jyw-1ke2
5
vulnerability VCID-j34j-bgfd-8fez
6
vulnerability VCID-jg77-mm5c-gydu
7
vulnerability VCID-m98a-mcyb-c7fm
8
vulnerability VCID-metf-cghw-p3b5
9
vulnerability VCID-p3dk-p1gb-kkem
10
vulnerability VCID-pbu7-4hdm-s3a6
11
vulnerability VCID-pnz8-yes1-pfc7
12
vulnerability VCID-wvs1-dhwp-ebat
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-rack@2.1.4-3%252Bdeb11u2%3Fdistro=trixie
1
url pkg:deb/debian/ruby-rack@2.1.4-3%2Bdeb11u2
purl pkg:deb/debian/ruby-rack@2.1.4-3%2Bdeb11u2
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-1j61-5e8x-7fbd
1
vulnerability VCID-2p73-rc9t-rudb
2
vulnerability VCID-2qba-a6bp-ryak
3
vulnerability VCID-47ja-djzb-2bbw
4
vulnerability VCID-5twm-pqc2-xyfn
5
vulnerability VCID-7p12-ejdu-uqgy
6
vulnerability VCID-9rpp-9xss-duf6
7
vulnerability VCID-azu5-jcmd-3ufx
8
vulnerability VCID-c5sc-7qnn-mkb9
9
vulnerability VCID-d58r-22kr-9bct
10
vulnerability VCID-dh75-6jyw-1ke2
11
vulnerability VCID-gdhf-e8q1-kbat
12
vulnerability VCID-j34j-bgfd-8fez
13
vulnerability VCID-jg77-mm5c-gydu
14
vulnerability VCID-m98a-mcyb-c7fm
15
vulnerability VCID-metf-cghw-p3b5
16
vulnerability VCID-npag-sz7d-v7b6
17
vulnerability VCID-p3dk-p1gb-kkem
18
vulnerability VCID-pbu7-4hdm-s3a6
19
vulnerability VCID-pnz8-yes1-pfc7
20
vulnerability VCID-s971-gkdg-jkhc
21
vulnerability VCID-skxv-7he3-xqgc
22
vulnerability VCID-w732-52bx-2qf8
23
vulnerability VCID-wt7k-s1yd-nke6
24
vulnerability VCID-wvs1-dhwp-ebat
25
vulnerability VCID-xazq-qrm1-9ff6
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-rack@2.1.4-3%252Bdeb11u2
2
url pkg:deb/debian/ruby-rack@2.2.20-0%2Bdeb12u1
purl pkg:deb/debian/ruby-rack@2.2.20-0%2Bdeb12u1
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-1j61-5e8x-7fbd
1
vulnerability VCID-2p73-rc9t-rudb
2
vulnerability VCID-2qba-a6bp-ryak
3
vulnerability VCID-5twm-pqc2-xyfn
4
vulnerability VCID-dh75-6jyw-1ke2
5
vulnerability VCID-j34j-bgfd-8fez
6
vulnerability VCID-jg77-mm5c-gydu
7
vulnerability VCID-m98a-mcyb-c7fm
8
vulnerability VCID-metf-cghw-p3b5
9
vulnerability VCID-p3dk-p1gb-kkem
10
vulnerability VCID-pbu7-4hdm-s3a6
11
vulnerability VCID-pnz8-yes1-pfc7
12
vulnerability VCID-wvs1-dhwp-ebat
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-rack@2.2.20-0%252Bdeb12u1
3
url pkg:deb/debian/ruby-rack@2.2.20-0%2Bdeb12u1?distro=trixie
purl pkg:deb/debian/ruby-rack@2.2.20-0%2Bdeb12u1?distro=trixie
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-1j61-5e8x-7fbd
1
vulnerability VCID-2p73-rc9t-rudb
2
vulnerability VCID-2qba-a6bp-ryak
3
vulnerability VCID-5twm-pqc2-xyfn
4
vulnerability VCID-dh75-6jyw-1ke2
5
vulnerability VCID-j34j-bgfd-8fez
6
vulnerability VCID-jg77-mm5c-gydu
7
vulnerability VCID-m98a-mcyb-c7fm
8
vulnerability VCID-metf-cghw-p3b5
9
vulnerability VCID-p3dk-p1gb-kkem
10
vulnerability VCID-pbu7-4hdm-s3a6
11
vulnerability VCID-pnz8-yes1-pfc7
12
vulnerability VCID-wvs1-dhwp-ebat
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-rack@2.2.20-0%252Bdeb12u1%3Fdistro=trixie
4
url pkg:deb/debian/ruby-rack@3.1.18-1~deb13u1?distro=trixie
purl pkg:deb/debian/ruby-rack@3.1.18-1~deb13u1?distro=trixie
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-1j61-5e8x-7fbd
1
vulnerability VCID-2p73-rc9t-rudb
2
vulnerability VCID-2qba-a6bp-ryak
3
vulnerability VCID-5twm-pqc2-xyfn
4
vulnerability VCID-dh75-6jyw-1ke2
5
vulnerability VCID-j34j-bgfd-8fez
6
vulnerability VCID-jg77-mm5c-gydu
7
vulnerability VCID-m98a-mcyb-c7fm
8
vulnerability VCID-metf-cghw-p3b5
9
vulnerability VCID-p3dk-p1gb-kkem
10
vulnerability VCID-pbu7-4hdm-s3a6
11
vulnerability VCID-pnz8-yes1-pfc7
12
vulnerability VCID-wvs1-dhwp-ebat
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-rack@3.1.18-1~deb13u1%3Fdistro=trixie
5
url pkg:deb/debian/ruby-rack@3.1.18-1~deb13u1
purl pkg:deb/debian/ruby-rack@3.1.18-1~deb13u1
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-1j61-5e8x-7fbd
1
vulnerability VCID-2p73-rc9t-rudb
2
vulnerability VCID-2qba-a6bp-ryak
3
vulnerability VCID-5twm-pqc2-xyfn
4
vulnerability VCID-dh75-6jyw-1ke2
5
vulnerability VCID-j34j-bgfd-8fez
6
vulnerability VCID-jg77-mm5c-gydu
7
vulnerability VCID-m98a-mcyb-c7fm
8
vulnerability VCID-metf-cghw-p3b5
9
vulnerability VCID-p3dk-p1gb-kkem
10
vulnerability VCID-pbu7-4hdm-s3a6
11
vulnerability VCID-pnz8-yes1-pfc7
12
vulnerability VCID-wvs1-dhwp-ebat
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-rack@3.1.18-1~deb13u1
6
url pkg:deb/debian/ruby-rack@3.2.5-2
purl pkg:deb/debian/ruby-rack@3.2.5-2
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-1j61-5e8x-7fbd
1
vulnerability VCID-2p73-rc9t-rudb
2
vulnerability VCID-2qba-a6bp-ryak
3
vulnerability VCID-5twm-pqc2-xyfn
4
vulnerability VCID-dh75-6jyw-1ke2
5
vulnerability VCID-j34j-bgfd-8fez
6
vulnerability VCID-jg77-mm5c-gydu
7
vulnerability VCID-m98a-mcyb-c7fm
8
vulnerability VCID-metf-cghw-p3b5
9
vulnerability VCID-p3dk-p1gb-kkem
10
vulnerability VCID-pbu7-4hdm-s3a6
11
vulnerability VCID-pnz8-yes1-pfc7
12
vulnerability VCID-wvs1-dhwp-ebat
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-rack@3.2.5-2
7
url pkg:deb/debian/ruby-rack@3.2.5-2?distro=trixie
purl pkg:deb/debian/ruby-rack@3.2.5-2?distro=trixie
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-1j61-5e8x-7fbd
1
vulnerability VCID-2p73-rc9t-rudb
2
vulnerability VCID-2qba-a6bp-ryak
3
vulnerability VCID-5twm-pqc2-xyfn
4
vulnerability VCID-dh75-6jyw-1ke2
5
vulnerability VCID-j34j-bgfd-8fez
6
vulnerability VCID-jg77-mm5c-gydu
7
vulnerability VCID-m98a-mcyb-c7fm
8
vulnerability VCID-metf-cghw-p3b5
9
vulnerability VCID-p3dk-p1gb-kkem
10
vulnerability VCID-pbu7-4hdm-s3a6
11
vulnerability VCID-pnz8-yes1-pfc7
12
vulnerability VCID-wvs1-dhwp-ebat
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-rack@3.2.5-2%3Fdistro=trixie
8
url pkg:gem/rack@3.0.0.beta1
purl pkg:gem/rack@3.0.0.beta1
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-1j61-5e8x-7fbd
1
vulnerability VCID-2p73-rc9t-rudb
2
vulnerability VCID-2qba-a6bp-ryak
3
vulnerability VCID-5twm-pqc2-xyfn
4
vulnerability VCID-7p12-ejdu-uqgy
5
vulnerability VCID-7wvj-9h3p-23am
6
vulnerability VCID-9rpp-9xss-duf6
7
vulnerability VCID-arac-j5h5-zkcu
8
vulnerability VCID-azu5-jcmd-3ufx
9
vulnerability VCID-c21j-snf1-d3cb
10
vulnerability VCID-c5sc-7qnn-mkb9
11
vulnerability VCID-d58r-22kr-9bct
12
vulnerability VCID-dh75-6jyw-1ke2
13
vulnerability VCID-gtzk-m9rm-57hw
14
vulnerability VCID-j34j-bgfd-8fez
15
vulnerability VCID-jg77-mm5c-gydu
16
vulnerability VCID-m98a-mcyb-c7fm
17
vulnerability VCID-metf-cghw-p3b5
18
vulnerability VCID-npag-sz7d-v7b6
19
vulnerability VCID-p3dk-p1gb-kkem
20
vulnerability VCID-pbu7-4hdm-s3a6
21
vulnerability VCID-s971-gkdg-jkhc
22
vulnerability VCID-skxv-7he3-xqgc
23
vulnerability VCID-vkrw-y1j6-6fe7
24
vulnerability VCID-wvs1-dhwp-ebat
25
vulnerability VCID-xkah-9nv9-wufd
resource_url http://public2.vulnerablecode.io/packages/pkg:gem/rack@3.0.0.beta1
9
url pkg:gem/rack@3.2.0
purl pkg:gem/rack@3.2.0
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-1j61-5e8x-7fbd
1
vulnerability VCID-2p73-rc9t-rudb
2
vulnerability VCID-2qba-a6bp-ryak
3
vulnerability VCID-5twm-pqc2-xyfn
4
vulnerability VCID-9rpp-9xss-duf6
5
vulnerability VCID-azu5-jcmd-3ufx
6
vulnerability VCID-c5sc-7qnn-mkb9
7
vulnerability VCID-d58r-22kr-9bct
8
vulnerability VCID-dh75-6jyw-1ke2
9
vulnerability VCID-j34j-bgfd-8fez
10
vulnerability VCID-jg77-mm5c-gydu
11
vulnerability VCID-m98a-mcyb-c7fm
12
vulnerability VCID-metf-cghw-p3b5
13
vulnerability VCID-npag-sz7d-v7b6
14
vulnerability VCID-p3dk-p1gb-kkem
15
vulnerability VCID-pbu7-4hdm-s3a6
16
vulnerability VCID-pnz8-yes1-pfc7
17
vulnerability VCID-s971-gkdg-jkhc
18
vulnerability VCID-skxv-7he3-xqgc
19
vulnerability VCID-wvs1-dhwp-ebat
resource_url http://public2.vulnerablecode.io/packages/pkg:gem/rack@3.2.0
References
0
reference_url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-26961.json
reference_id
reference_type
scores
0
value 3.7
scoring_system cvssv3
scoring_elements CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-26961.json
1
reference_url https://api.first.org/data/v1/epss?cve=CVE-2026-26961
reference_id
reference_type
scores
0
value 0.00029
scoring_system epss
scoring_elements 0.08165
published_at 2026-04-07T12:55:00Z
1
value 0.00029
scoring_system epss
scoring_elements 0.08219
published_at 2026-04-04T12:55:00Z
2
value 0.00038
scoring_system epss
scoring_elements 0.11236
published_at 2026-04-16T12:55:00Z
3
value 0.00038
scoring_system epss
scoring_elements 0.11376
published_at 2026-04-08T12:55:00Z
4
value 0.00038
scoring_system epss
scoring_elements 0.11434
published_at 2026-04-09T12:55:00Z
5
value 0.00038
scoring_system epss
scoring_elements 0.1144
published_at 2026-04-11T12:55:00Z
6
value 0.00038
scoring_system epss
scoring_elements 0.11407
published_at 2026-04-12T12:55:00Z
7
value 0.00038
scoring_system epss
scoring_elements 0.11377
published_at 2026-04-13T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2026-26961
2
reference_url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-26961
reference_id
reference_type
scores
url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-26961
3
reference_url https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
reference_id
reference_type
scores
0
value 3.7
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
url https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
4
reference_url https://github.com/rack/rack
reference_id
reference_type
scores
0
value 3.7
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
1
value LOW
scoring_system generic_textual
scoring_elements
url https://github.com/rack/rack
5
reference_url https://github.com/rack/rack/security/advisories/GHSA-vgpv-f759-9wx3
reference_id
reference_type
scores
0
value 3.7
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
1
value LOW
scoring_system cvssv3.1_qr
scoring_elements
2
value LOW
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/2026-04-03T17:57:50Z/
url https://github.com/rack/rack/security/advisories/GHSA-vgpv-f759-9wx3
6
reference_url https://nvd.nist.gov/vuln/detail/CVE-2026-26961
reference_id
reference_type
scores
0
value 3.7
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
1
value LOW
scoring_system generic_textual
scoring_elements
url https://nvd.nist.gov/vuln/detail/CVE-2026-26961
7
reference_url https://bugzilla.redhat.com/show_bug.cgi?id=2454483
reference_id 2454483
reference_type
scores
url https://bugzilla.redhat.com/show_bug.cgi?id=2454483
8
reference_url https://github.com/advisories/GHSA-vgpv-f759-9wx3
reference_id GHSA-vgpv-f759-9wx3
reference_type
scores
0
value LOW
scoring_system cvssv3.1_qr
scoring_elements
url https://github.com/advisories/GHSA-vgpv-f759-9wx3
Weaknesses
0
cwe_id 436
name Interpretation Conflict
description Product A handles inputs or steps differently than Product B, which causes A to perform incorrect actions based on its perception of B's state.
1
cwe_id 444
name Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
description The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.
Exploits
Severity_range_score0.1 - 3.7
Exploitability0.5
Weighted_severity3.3
Risk_score1.6
Resource_urlhttp://public2.vulnerablecode.io/vulnerabilities/VCID-wvs1-dhwp-ebat