Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 8.7 | High | 4.0 | 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 | CNA (snyk) |
- CISA KEV Not listed.
- EPSS 0.0056, the 46th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
Sources
- GitHub Advisory Database: GHSA-8g7p-jf3g-gxcp
- OSV: GHSA-8g7p-jf3g-gxcp
- nvd.nist.gov/vuln/detail/CVE-2026-4598
- github.com/kjur/jsrsasign/pull/648
- github.com/kjur/jsrsasign/commit/ca5b027240287a1e71fe63019fc4400332594323
- security.snyk.io/vuln/SNYK-JS-JSRSASIGN-15370938
- security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-15812263
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4598.json
- github.com/kjur/jsrsasign
- gist.github.com/Kr0emer/a1bf5cd4547cc630d2dcc5e761de8264
- bugzilla.redhat.com/show_bug.cgi?id=2450210
- access.redhat.com/security/cve/CVE-2026-4598
- access.redhat.com/errata/RHSA-2026:6720
- access.redhat.com/errata/RHSA-2026:6568