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
EPSS: 0.006 (47.7th percentile) — read the EPSS interpretation.
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.
Affected products
- Deno — versions 1.34.0
- Deno Deno_runtime — versions 0.114.0
- Denoland Deno — versions deno = 1.34.0, deno_runtime = 0.114.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (x_refsource_MISC, 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.