{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/88344?format=json","vulnerability_id":"VCID-1mbe-jqtq-q3gn","summary":"Microsoft Knack 0.12.0 allows Regular expression Denial of Service (ReDoS) in the knack.introspection module. extract_full_summary_from_signature employs an inefficient regular expression pattern: \"\\s(:param)\\s+(.+?)\\s:(.*)\" that is susceptible to catastrophic backtracking when processing crafted docstrings containing a large volume of whitespace without a terminating colon. An attacker who can control or inject docstring content into affected applications can trigger excessive CPU consumption. This software is used by Azure CLI.","aliases":[{"alias":"CVE-2025-54363"},{"alias":"GHSA-6fxp-p9mg-q64w"}],"fixed_packages":[],"affected_packages":[],"references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2025-54363","reference_id":"","reference_type":"","scores":[{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72403","published_at":"2026-06-11T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2025-54363"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-54363","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-54363"},{"reference_url":"https://github.com/microsoft/knack/issues/281#issuecomment-3218922941","reference_id":"","reference_type":"","scores":[{"value":"1.2","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U"},{"value":"LOW","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/microsoft/knack/issues/281#issuecomment-3218922941"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2025-54363","reference_id":"","reference_type":"","scores":[{"value":"1.2","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U"},{"value":"LOW","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-54363"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1111774","reference_id":"1111774","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1111774"},{"reference_url":"https://github.com/microsoft/knack/issues/281","reference_id":"281","reference_type":"","scores":[{"value":"1.2","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U"},{"value":"6.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"},{"value":"LOW","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-08-20T13:37:39Z/"}],"url":"https://github.com/microsoft/knack/issues/281"},{"reference_url":"https://github.com/microsoft/knack","reference_id":"knack","reference_type":"","scores":[{"value":"1.2","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U"},{"value":"6.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"},{"value":"LOW","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-08-20T13:37:39Z/"}],"url":"https://github.com/microsoft/knack"},{"reference_url":"https://www.vulncheck.com/advisories/microsoft-knack-python-package-regular-expression-dos","reference_id":"microsoft-knack-python-package-regular-expression-dos","reference_type":"","scores":[{"value":"1.2","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U"},{"value":"6.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"},{"value":"LOW","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-08-20T13:37:39Z/"}],"url":"https://www.vulncheck.com/advisories/microsoft-knack-python-package-regular-expression-dos"}],"weaknesses":[{"cwe_id":1333,"name":"Inefficient Regular Expression Complexity","description":"The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles."}],"exploits":[],"severity_range_score":"0.1 - 6.9","exploitability":null,"weighted_severity":null,"risk_score":null,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-1mbe-jqtq-q3gn"}