CVE-2026-26954 is a critical sandbox escape vulnerability affecting SandboxJS versions prior to 0.8.34, allowing attackers to bypass the JavaScript sandbox by manipulating Function objects. Rated with a CVSS score of 10.0 (CRITICAL), it presents a severe risk due to its network attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed on the CISA KEV catalog or Hot List.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.8.34CPE matchmatch criteria | cpe:2.3:a:nyariv:sandboxjs:*:*:*:*:*:node.js:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
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.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.