CVE-2026-4600 is a critical cryptographic signature bypass vulnerability affecting jsrsasign package versions prior to 11.1.1. This flaw allows an unauthenticated attacker to forge DSA signatures or X.509 certificates by supplying malicious domain parameters, leading to high confidentiality and integrity impacts. With a CVSS score of 9.1 (CRITICAL), it presents a significant risk due to its network-based attack vector and low attack complexity. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 11.1.1CPE matchmatch criteria | cpe:2.3:a:kjur:jsrsasign:*:*:*:*:*:node.js:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.