{"url":"http://public2.vulnerablecode.io/api/packages/994731?format=json","purl":"pkg:deb/debian/node-path-to-regexp@8.4.1-1","type":"deb","namespace":"debian","name":"node-path-to-regexp","version":"8.4.1-1","qualifiers":{},"subpath":"","is_vulnerable":false,"next_non_vulnerable_version":null,"latest_non_vulnerable_version":null,"affected_by_vulnerabilities":[],"fixing_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/23228?format=json","vulnerability_id":"VCID-1vjw-mm86-k7gn","summary":"path-to-regexp vulnerable to Denial of Service via sequential optional groups\n### Impact\n\nA bad regular expression is generated any time you have multiple sequential optional groups (curly brace syntax), such as `{a}{b}{c}:z`. The generated regex grows exponentially with the number of groups, causing denial of service.\n\n### Patches\n\nFixed in version 8.4.0.\n\n### Workarounds\n\nLimit the number of sequential optional groups in route patterns. Avoid passing user-controlled input as route patterns.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-4926.json","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-4926.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2026-4926","reference_id":"","reference_type":"","scores":[{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16236","published_at":"2026-04-26T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.1624","published_at":"2026-04-24T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16347","published_at":"2026-04-21T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16313","published_at":"2026-04-18T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16292","published_at":"2026-04-16T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16356","published_at":"2026-04-13T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16417","published_at":"2026-04-12T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16457","published_at":"2026-04-11T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16472","published_at":"2026-04-09T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16469","published_at":"2026-04-02T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16414","published_at":"2026-04-08T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16328","published_at":"2026-04-07T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16531","published_at":"2026-04-04T12:55:00Z"},{"value":"0.00057","scoring_system":"epss","scoring_elements":"0.17646","published_at":"2026-04-29T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-4926"},{"reference_url":"https://cna.openjsf.org/security-advisories.html","reference_id":"","reference_type":"","scores":[{"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:N/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-03-27T19:44:44Z/"}],"url":"https://cna.openjsf.org/security-advisories.html"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-4926","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-4926"},{"reference_url":"https://github.com/pillarjs/path-to-regexp","reference_id":"","reference_type":"","scores":[{"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:N/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/pillarjs/path-to-regexp"},{"reference_url":"https://github.com/pillarjs/path-to-regexp/security/advisories/GHSA-j3q9-mxjg-w52f","reference_id":"","reference_type":"","scores":[{"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:N/A:H"},{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/pillarjs/path-to-regexp/security/advisories/GHSA-j3q9-mxjg-w52f"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4926","reference_id":"","reference_type":"","scores":[{"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:N/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4926"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1132020","reference_id":"1132020","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1132020"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=2451867","reference_id":"2451867","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2451867"},{"reference_url":"https://github.com/advisories/GHSA-j3q9-mxjg-w52f","reference_id":"GHSA-j3q9-mxjg-w52f","reference_type":"","scores":[{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-j3q9-mxjg-w52f"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:10153","reference_id":"RHSA-2026:10153","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:10153"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:10172","reference_id":"RHSA-2026:10172","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:10172"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:10175","reference_id":"RHSA-2026:10175","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:10175"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:9385","reference_id":"RHSA-2026:9385","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:9385"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:9742","reference_id":"RHSA-2026:9742","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:9742"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/994731?format=json","purl":"pkg:deb/debian/node-path-to-regexp@8.4.1-1","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/node-path-to-regexp@8.4.1-1"}],"aliases":["CVE-2026-4926","GHSA-j3q9-mxjg-w52f"],"risk_score":4.0,"exploitability":"0.5","weighted_severity":"8.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-1vjw-mm86-k7gn"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/24833?format=json","vulnerability_id":"VCID-366w-k4rs-v7d3","summary":"path-to-regexp vulnerable to Regular Expression Denial of Service via multiple wildcards\n### Impact\n\nWhen using multiple wildcards, combined with at least one parameter, a regular expression can be generated that is vulnerable to ReDoS. This backtracking vulnerability requires the second wildcard to be somewhere other than the end of the path.\n\n**Unsafe examples:**\n\n```\n/*foo-*bar-:baz\n/*a-:b-*c-:d\n/x/*a-:b/*c/y\n```\n\n**Safe examples:**\n\n```\n/*foo-:bar\n/*foo-:bar-*baz\n```\n\n### Patches\n\nUpgrade to version `8.4.0`.\n\n### Workarounds\n\nIf developers are using multiple wildcard parameters, they can check the regex output with a tool such as https://makenowjust-labs.github.io/recheck/playground/ to confirm whether a path is vulnerable.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-4923.json","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-4923.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2026-4923","reference_id":"","reference_type":"","scores":[{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16295","published_at":"2026-04-26T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.163","published_at":"2026-04-24T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16406","published_at":"2026-04-21T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16368","published_at":"2026-04-18T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16348","published_at":"2026-04-16T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16408","published_at":"2026-04-13T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16468","published_at":"2026-04-12T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16506","published_at":"2026-04-11T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16379","published_at":"2026-04-07T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16579","published_at":"2026-04-04T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16524","published_at":"2026-04-09T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16464","published_at":"2026-04-08T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16517","published_at":"2026-04-02T12:55:00Z"},{"value":"0.00057","scoring_system":"epss","scoring_elements":"0.17721","published_at":"2026-04-29T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-4923"},{"reference_url":"https://cna.openjsf.org/security-advisories.html","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"MODERATE","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/2026-03-27T13:46:47Z/"}],"url":"https://cna.openjsf.org/security-advisories.html"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-4923","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-4923"},{"reference_url":"https://github.com/pillarjs/path-to-regexp","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/pillarjs/path-to-regexp"},{"reference_url":"https://github.com/pillarjs/path-to-regexp/security/advisories/GHSA-27v5-c462-wpq7","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/pillarjs/path-to-regexp/security/advisories/GHSA-27v5-c462-wpq7"},{"reference_url":"https://makenowjust-labs.github.io/recheck/playground","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://makenowjust-labs.github.io/recheck/playground"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4923","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4923"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1132020","reference_id":"1132020","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1132020"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=2451860","reference_id":"2451860","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2451860"},{"reference_url":"https://github.com/advisories/GHSA-27v5-c462-wpq7","reference_id":"GHSA-27v5-c462-wpq7","reference_type":"","scores":[{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-27v5-c462-wpq7"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/994731?format=json","purl":"pkg:deb/debian/node-path-to-regexp@8.4.1-1","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/node-path-to-regexp@8.4.1-1"}],"aliases":["CVE-2026-4923","GHSA-27v5-c462-wpq7"],"risk_score":3.1,"exploitability":"0.5","weighted_severity":"6.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-366w-k4rs-v7d3"}],"risk_score":null,"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/node-path-to-regexp@8.4.1-1"}