CVE-2023-33966 json
Deno missing "--allow-net" permission check for built-in Node modules
published 2023-05-31 3 y ago modified 2026-09-10 1 mo ago also GHSA-vc52-gwm3-8v2f , EUVD-2023-1626
- cvss
- 8.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 50%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- crates.io deno 1.34.1
- crates.io deno_runtime 0.115.0
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 21 mo ago
Exploit prediction
0.63% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| crates.io | deno | >=1.34.0, <1.34.1 |
1.34.1 |
| crates.io | deno_runtime | >=0.114.0, <0.115.0 |
0.115.0 |
Affected products
- denoland deno
Classification
References
-
github.com
/denoland/deno/security/advisories/GHSA-vc52-gwm3-8v2f
web, vendor-advisory
-
github.com
/denoland/deno/releases/tag/v1.34.1
web, release-notes
-
nvd.nist.gov
/vuln/detail/CVE-2023-33966
advisory
-
github.com
/denoland/deno
package
Sources
- CVE List CVE-2023-33966
- GitHub Advisory GHSA-vc52-gwm3-8v2f
- NVD CVE-2023-33966
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