{"cve":"CVE-2026-4598","nvd":{"published":"2026-03-23T06:16:21.300","modified":"2026-09-10T13:20:20.940","status":"Modified","description":"Versions of the package jsrsasign before 11.1.1 are vulnerable to Infinite loop via the bnModInverse function in ext/jsbn2.js when the BigInteger.modInverse implementation receives zero or negative inputs, allowing an attacker to hang the process permanently by supplying such crafted values (e.g., modInverse(0, m) or modInverse(-1, m)).","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P","score":7.7},"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":["CWE-835","CWE-1287"],"references":["https://gist.github.com/Kr0emer/a1bf5cd4547cc630d2dcc5e761de8264","https://github.com/kjur/jsrsasign/commit/ca5b027240287a1e71fe63019fc4400332594323","https://github.com/kjur/jsrsasign/pull/648","https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-15812263","https://security.snyk.io/vuln/SNYK-JS-JSRSASIGN-15370938"],"products":["kjur:jsrsasign"],"source":"nvd","synced_at":"2026-10-19T22:26:19.218427112+00:00"},"epss":{"cve":"CVE-2026-4598","score":0.00556,"percentile":0.46402,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-8g7p-jf3g-gxcp","url":"https://osv.dev/vulnerability/GHSA-8g7p-jf3g-gxcp","summary":"jsrsasign is vulnerable to DoS through Infinite Loop when processing zero or negative inputs","modified":"2026-07-21T14:00:32.731292956Z","packages":[{"ecosystem":"npm","name":"jsrsasign","purl":"pkg:npm/jsrsasign","ranges":["<11.1.1"],"fixed":["11.1.1"]}]}],"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."]}