Privilege escalation in Deno
CVE-2023-33966
Deno is a runtime for JavaScript and TypeScript. In deno 1.34.0 and deno_runtime 0.114.0, outbound HTTP requests made using the built-in `node:http` or `node:https` modules are incorrectly not checked against the network permission allow list (`--allow-net`). Dependencies relying on these built-in modules are subject to the vulnerability too. Users of Deno versions prior to 1.34.0 are unaffected. Deno Deploy users are unaffected. This problem has been patched in Deno v1.34.1 and deno_runtime 0.114.1 and all users are recommended to update to this version. No workaround is available for this issue.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.006 (49.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Deno — versions 1.34.0
- Deno Runtime — versions 0.114.0
- Denoland Deno — versions deno = 1.34.0, deno_runtime = 0.114.0
Weakness classification (CWE)
References
- github.com/denoland/deno/security/advisories/GHSA-vc52-gwm3-8v2f (Vendor Advisory)
- github.com/denoland/deno/releases/tag/v1.34.1 (Release Notes)
Frequently asked questions
- What is CVE-2023-33966?
- CVE-2023-33966 is a high-severity vulnerability in Deno, classified under Improper Privilege Management. CVSS score: 8.6/10. Published 2023-05-31.
- How severe is CVE-2023-33966?
- High severity. CVSS v3 base score is 8.6 out of 10.