{"cve":"CVE-2021-27290","nvd":{"published":"2021-03-12T22:15:14.843","modified":"2026-06-17T03:44:37.160","status":"Modified","description":"ssri 5.2.2-8.0.0, fixed in 8.0.1, processes SRIs using a regular expression which is vulnerable to a denial of service. Malicious SRIs could take an extremely long time to process, leading to denial of service. This issue only affects consumers using the strict option.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":[],"references":["https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf","https://doyensec.com/resources/Doyensec_Advisory_ssri_redos.pdf","https://github.com/yetingli/SaveResults/blob/main/pdf/ssri-redos.pdf","https://npmjs.com","https://www.oracle.com/security-alerts/cpuoct2021.html"],"products":["oracle:graalvm","siemens:sinec_infrastructure_network_services","ssri_project:ssri"],"source":"nvd","synced_at":"2026-10-19T21:15:50.279857260+00:00"},"epss":{"cve":"CVE-2021-27290","score":0.0472,"percentile":0.91836,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-vx3p-948g-6vhq","url":"https://osv.dev/vulnerability/GHSA-vx3p-948g-6vhq","summary":"Regular Expression Denial of Service (ReDoS)","modified":"2023-11-08T04:05:24.003426Z","packages":[{"ecosystem":"npm","name":"ssri","purl":"pkg:npm/ssri","ranges":[">=5.2.2 <6.0.2"],"fixed":["6.0.2"]},{"ecosystem":"npm","name":"ssri","purl":"pkg:npm/ssri","ranges":[">=7.0.0 <7.1.1"],"fixed":["7.1.1"]},{"ecosystem":"npm","name":"ssri","purl":"pkg:npm/ssri","ranges":[">=8.0.0 <8.0.1"],"fixed":["8.0.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}