Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/349404?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/349404?format=api", "vulnerability_id": "VCID-wvs1-dhwp-ebat", "summary": "Rack 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": [ { "alias": "CVE-2026-26961" }, { "alias": "GHSA-vgpv-f759-9wx3" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/1059939?format=api", "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" }, { "url": "http://public2.vulnerablecode.io/api/packages/1059941?format=api", "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" }, { "url": "http://public2.vulnerablecode.io/api/packages/1059652?format=api", "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" }, { "url": "http://public2.vulnerablecode.io/api/packages/1059943?format=api", "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" }, { "url": "http://public2.vulnerablecode.io/api/packages/994089?format=api", "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" }, { "url": "http://public2.vulnerablecode.io/api/packages/994090?format=api", "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" }, { "url": "http://public2.vulnerablecode.io/api/packages/994091?format=api", "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": [ { "url": "http://public2.vulnerablecode.io/api/packages/938322?format=api", "purl": "pkg:deb/debian/ruby-rack@2.1.4-3%2Bdeb11u2?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1j61-5e8x-7fbd" }, { "vulnerability": "VCID-2p73-rc9t-rudb" }, { "vulnerability": "VCID-2qba-a6bp-ryak" }, { "vulnerability": "VCID-5twm-pqc2-xyfn" }, { "vulnerability": "VCID-dh75-6jyw-1ke2" }, { "vulnerability": "VCID-j34j-bgfd-8fez" }, { "vulnerability": "VCID-jg77-mm5c-gydu" }, { "vulnerability": "VCID-m98a-mcyb-c7fm" }, { "vulnerability": "VCID-metf-cghw-p3b5" }, { "vulnerability": "VCID-p3dk-p1gb-kkem" }, { "vulnerability": "VCID-pbu7-4hdm-s3a6" }, { "vulnerability": "VCID-pnz8-yes1-pfc7" }, { "vulnerability": "VCID-wvs1-dhwp-ebat" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-rack@2.1.4-3%252Bdeb11u2%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/1049093?format=api", "purl": "pkg:deb/debian/ruby-rack@2.1.4-3%2Bdeb11u2", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1j61-5e8x-7fbd" }, { "vulnerability": "VCID-2p73-rc9t-rudb" }, { "vulnerability": "VCID-2qba-a6bp-ryak" }, { "vulnerability": "VCID-47ja-djzb-2bbw" }, { "vulnerability": "VCID-5twm-pqc2-xyfn" }, { "vulnerability": "VCID-7p12-ejdu-uqgy" }, { "vulnerability": "VCID-9rpp-9xss-duf6" }, { "vulnerability": "VCID-azu5-jcmd-3ufx" }, { "vulnerability": "VCID-c5sc-7qnn-mkb9" }, { "vulnerability": "VCID-d58r-22kr-9bct" }, { "vulnerability": "VCID-dh75-6jyw-1ke2" }, { "vulnerability": "VCID-gdhf-e8q1-kbat" }, { "vulnerability": "VCID-j34j-bgfd-8fez" }, { "vulnerability": "VCID-jg77-mm5c-gydu" }, { "vulnerability": "VCID-m98a-mcyb-c7fm" }, { "vulnerability": "VCID-metf-cghw-p3b5" }, { "vulnerability": "VCID-npag-sz7d-v7b6" }, { "vulnerability": "VCID-p3dk-p1gb-kkem" }, { "vulnerability": "VCID-pbu7-4hdm-s3a6" }, { "vulnerability": "VCID-pnz8-yes1-pfc7" }, { "vulnerability": "VCID-s971-gkdg-jkhc" }, { "vulnerability": "VCID-skxv-7he3-xqgc" }, { "vulnerability": "VCID-w732-52bx-2qf8" }, { "vulnerability": "VCID-wt7k-s1yd-nke6" }, { "vulnerability": "VCID-wvs1-dhwp-ebat" }, { "vulnerability": "VCID-xazq-qrm1-9ff6" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-rack@2.1.4-3%252Bdeb11u2" }, { "url": "http://public2.vulnerablecode.io/api/packages/1049206?format=api", "purl": "pkg:deb/debian/ruby-rack@2.2.20-0%2Bdeb12u1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1j61-5e8x-7fbd" }, { "vulnerability": "VCID-2p73-rc9t-rudb" }, { "vulnerability": "VCID-2qba-a6bp-ryak" }, { "vulnerability": "VCID-5twm-pqc2-xyfn" }, { "vulnerability": "VCID-dh75-6jyw-1ke2" }, { "vulnerability": "VCID-j34j-bgfd-8fez" }, { "vulnerability": "VCID-jg77-mm5c-gydu" }, { "vulnerability": "VCID-m98a-mcyb-c7fm" }, { "vulnerability": "VCID-metf-cghw-p3b5" }, { "vulnerability": "VCID-p3dk-p1gb-kkem" }, { "vulnerability": "VCID-pbu7-4hdm-s3a6" }, { "vulnerability": "VCID-pnz8-yes1-pfc7" }, { "vulnerability": "VCID-wvs1-dhwp-ebat" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-rack@2.2.20-0%252Bdeb12u1" }, { "url": "http://public2.vulnerablecode.io/api/packages/938320?format=api", "purl": "pkg:deb/debian/ruby-rack@2.2.20-0%2Bdeb12u1?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1j61-5e8x-7fbd" }, { "vulnerability": "VCID-2p73-rc9t-rudb" }, { "vulnerability": "VCID-2qba-a6bp-ryak" }, { "vulnerability": "VCID-5twm-pqc2-xyfn" }, { "vulnerability": "VCID-dh75-6jyw-1ke2" }, { "vulnerability": "VCID-j34j-bgfd-8fez" }, { "vulnerability": "VCID-jg77-mm5c-gydu" }, { "vulnerability": "VCID-m98a-mcyb-c7fm" }, { "vulnerability": "VCID-metf-cghw-p3b5" }, { "vulnerability": "VCID-p3dk-p1gb-kkem" }, { "vulnerability": "VCID-pbu7-4hdm-s3a6" }, { "vulnerability": "VCID-pnz8-yes1-pfc7" }, { "vulnerability": "VCID-wvs1-dhwp-ebat" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-rack@2.2.20-0%252Bdeb12u1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/938325?format=api", "purl": "pkg:deb/debian/ruby-rack@3.1.18-1~deb13u1?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1j61-5e8x-7fbd" }, { "vulnerability": "VCID-2p73-rc9t-rudb" }, { "vulnerability": "VCID-2qba-a6bp-ryak" }, { "vulnerability": "VCID-5twm-pqc2-xyfn" }, { "vulnerability": "VCID-dh75-6jyw-1ke2" }, { "vulnerability": "VCID-j34j-bgfd-8fez" }, { "vulnerability": "VCID-jg77-mm5c-gydu" }, { "vulnerability": "VCID-m98a-mcyb-c7fm" }, { "vulnerability": "VCID-metf-cghw-p3b5" }, { "vulnerability": "VCID-p3dk-p1gb-kkem" }, { "vulnerability": "VCID-pbu7-4hdm-s3a6" }, { "vulnerability": "VCID-pnz8-yes1-pfc7" }, { "vulnerability": "VCID-wvs1-dhwp-ebat" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-rack@3.1.18-1~deb13u1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/1059940?format=api", "purl": "pkg:deb/debian/ruby-rack@3.1.18-1~deb13u1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1j61-5e8x-7fbd" }, { "vulnerability": "VCID-2p73-rc9t-rudb" }, { "vulnerability": "VCID-2qba-a6bp-ryak" }, { "vulnerability": "VCID-5twm-pqc2-xyfn" }, { "vulnerability": "VCID-dh75-6jyw-1ke2" }, { "vulnerability": "VCID-j34j-bgfd-8fez" }, { "vulnerability": "VCID-jg77-mm5c-gydu" }, { "vulnerability": "VCID-m98a-mcyb-c7fm" }, { "vulnerability": "VCID-metf-cghw-p3b5" }, { "vulnerability": "VCID-p3dk-p1gb-kkem" }, { "vulnerability": "VCID-pbu7-4hdm-s3a6" }, { "vulnerability": "VCID-pnz8-yes1-pfc7" }, { "vulnerability": "VCID-wvs1-dhwp-ebat" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-rack@3.1.18-1~deb13u1" }, { "url": "http://public2.vulnerablecode.io/api/packages/1059942?format=api", "purl": "pkg:deb/debian/ruby-rack@3.2.5-2", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1j61-5e8x-7fbd" }, { "vulnerability": "VCID-2p73-rc9t-rudb" }, { "vulnerability": "VCID-2qba-a6bp-ryak" }, { "vulnerability": "VCID-5twm-pqc2-xyfn" }, { "vulnerability": "VCID-dh75-6jyw-1ke2" }, { "vulnerability": "VCID-j34j-bgfd-8fez" }, { "vulnerability": "VCID-jg77-mm5c-gydu" }, { "vulnerability": "VCID-m98a-mcyb-c7fm" }, { "vulnerability": "VCID-metf-cghw-p3b5" }, { "vulnerability": "VCID-p3dk-p1gb-kkem" }, { "vulnerability": "VCID-pbu7-4hdm-s3a6" }, { "vulnerability": "VCID-pnz8-yes1-pfc7" }, { "vulnerability": "VCID-wvs1-dhwp-ebat" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-rack@3.2.5-2" }, { "url": "http://public2.vulnerablecode.io/api/packages/938324?format=api", "purl": "pkg:deb/debian/ruby-rack@3.2.5-2?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1j61-5e8x-7fbd" }, { "vulnerability": "VCID-2p73-rc9t-rudb" }, { "vulnerability": "VCID-2qba-a6bp-ryak" }, { "vulnerability": "VCID-5twm-pqc2-xyfn" }, { "vulnerability": "VCID-dh75-6jyw-1ke2" }, { "vulnerability": "VCID-j34j-bgfd-8fez" }, { "vulnerability": "VCID-jg77-mm5c-gydu" }, { "vulnerability": "VCID-m98a-mcyb-c7fm" }, { "vulnerability": "VCID-metf-cghw-p3b5" }, { "vulnerability": "VCID-p3dk-p1gb-kkem" }, { "vulnerability": "VCID-pbu7-4hdm-s3a6" }, { "vulnerability": "VCID-pnz8-yes1-pfc7" }, { "vulnerability": "VCID-wvs1-dhwp-ebat" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/ruby-rack@3.2.5-2%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/67812?format=api", "purl": "pkg:gem/rack@3.0.0.beta1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1j61-5e8x-7fbd" }, { "vulnerability": "VCID-2p73-rc9t-rudb" }, { "vulnerability": "VCID-2qba-a6bp-ryak" }, { "vulnerability": "VCID-5twm-pqc2-xyfn" }, { "vulnerability": "VCID-7p12-ejdu-uqgy" }, { "vulnerability": "VCID-7wvj-9h3p-23am" }, { "vulnerability": "VCID-9rpp-9xss-duf6" }, { "vulnerability": "VCID-arac-j5h5-zkcu" }, { "vulnerability": "VCID-azu5-jcmd-3ufx" }, { "vulnerability": "VCID-c21j-snf1-d3cb" }, { "vulnerability": "VCID-c5sc-7qnn-mkb9" }, { "vulnerability": "VCID-d58r-22kr-9bct" }, { "vulnerability": "VCID-dh75-6jyw-1ke2" }, { "vulnerability": "VCID-gtzk-m9rm-57hw" }, { "vulnerability": "VCID-j34j-bgfd-8fez" }, { "vulnerability": "VCID-jg77-mm5c-gydu" }, { "vulnerability": "VCID-m98a-mcyb-c7fm" }, { "vulnerability": "VCID-metf-cghw-p3b5" }, { "vulnerability": "VCID-npag-sz7d-v7b6" }, { "vulnerability": "VCID-p3dk-p1gb-kkem" }, { "vulnerability": "VCID-pbu7-4hdm-s3a6" }, { "vulnerability": "VCID-s971-gkdg-jkhc" }, { "vulnerability": "VCID-skxv-7he3-xqgc" }, { "vulnerability": "VCID-vkrw-y1j6-6fe7" }, { "vulnerability": "VCID-wvs1-dhwp-ebat" }, { "vulnerability": "VCID-xkah-9nv9-wufd" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:gem/rack@3.0.0.beta1" }, { "url": "http://public2.vulnerablecode.io/api/packages/67813?format=api", "purl": "pkg:gem/rack@3.2.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1j61-5e8x-7fbd" }, { "vulnerability": "VCID-2p73-rc9t-rudb" }, { "vulnerability": "VCID-2qba-a6bp-ryak" }, { "vulnerability": "VCID-5twm-pqc2-xyfn" }, { "vulnerability": "VCID-9rpp-9xss-duf6" }, { "vulnerability": "VCID-azu5-jcmd-3ufx" }, { "vulnerability": "VCID-c5sc-7qnn-mkb9" }, { "vulnerability": "VCID-d58r-22kr-9bct" }, { "vulnerability": "VCID-dh75-6jyw-1ke2" }, { "vulnerability": "VCID-j34j-bgfd-8fez" }, { "vulnerability": "VCID-jg77-mm5c-gydu" }, { "vulnerability": "VCID-m98a-mcyb-c7fm" }, { "vulnerability": "VCID-metf-cghw-p3b5" }, { "vulnerability": "VCID-npag-sz7d-v7b6" }, { "vulnerability": "VCID-p3dk-p1gb-kkem" }, { "vulnerability": "VCID-pbu7-4hdm-s3a6" }, { "vulnerability": "VCID-pnz8-yes1-pfc7" }, { "vulnerability": "VCID-s971-gkdg-jkhc" }, { "vulnerability": "VCID-skxv-7he3-xqgc" }, { "vulnerability": "VCID-wvs1-dhwp-ebat" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:gem/rack@3.2.0" } ], "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-26961.json", "reference_id": "", "reference_type": "", "scores": [ { "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" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-26961", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00029", "scoring_system": "epss", "scoring_elements": "0.08219", "published_at": "2026-04-04T12:55:00Z" }, { "value": "0.00029", "scoring_system": "epss", "scoring_elements": "0.08165", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.00038", "scoring_system": "epss", "scoring_elements": "0.11407", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.00038", "scoring_system": "epss", "scoring_elements": "0.1144", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.00038", "scoring_system": "epss", "scoring_elements": "0.11434", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.00038", "scoring_system": "epss", "scoring_elements": "0.11376", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.00038", "scoring_system": "epss", "scoring_elements": "0.11236", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.00038", "scoring_system": "epss", "scoring_elements": "0.11377", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.0004", "scoring_system": "epss", "scoring_elements": "0.12015", "published_at": "2026-04-18T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-26961" }, { "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" }, { "reference_url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml", "reference_id": "", "reference_type": "", "scores": [ { "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" }, { "reference_url": "https://github.com/rack/rack", "reference_id": "", "reference_type": "", "scores": [ { "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" }, { "value": "LOW", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/rack/rack" }, { "reference_url": "https://github.com/rack/rack/security/advisories/GHSA-vgpv-f759-9wx3", "reference_id": "", "reference_type": "", "scores": [ { "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" }, { "value": "LOW", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "LOW", "scoring_system": "generic_textual", "scoring_elements": "" }, { "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" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26961", "reference_id": "", "reference_type": "", "scores": [ { "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" }, { "value": "LOW", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26961" }, { "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" }, { "reference_url": "https://github.com/advisories/GHSA-vgpv-f759-9wx3", "reference_id": "GHSA-vgpv-f759-9wx3", "reference_type": "", "scores": [ { "value": "LOW", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-vgpv-f759-9wx3" }, { "reference_url": "https://usn.ubuntu.com/8182-1/", "reference_id": "USN-8182-1", "reference_type": "", "scores": [], "url": "https://usn.ubuntu.com/8182-1/" } ], "weaknesses": [ { "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." }, { "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_score": "0.1 - 3.7", "exploitability": "0.5", "weighted_severity": "3.3", "risk_score": 1.6, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-wvs1-dhwp-ebat" }