What is CVE-2024-27931?

CVE-2024-27931 is a medium-severity vulnerability in Deno, classified under Improper Input Validation. CVSS score: 5.8/10. Published 2024-03-05.

How severe is CVE-2024-27931?

Medium severity. CVSS v3 base score is 5.8 out of 10.

Is CVE-2024-27931 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Improper input validation in Deno

CVE-2024-27931

Deno is a JavaScript, TypeScript, and WebAssembly runtime with secure defaults. Insufficient validation of parameters in `Deno.makeTemp*` APIs would allow for creation of files outside of the allowed directories. This may allow the user to overwrite important files on the system that may affect other systems. A user may provide a prefix or suffix to a `Deno.makeTemp*` API containing path traversal characters. This is fixed in Deno 1.41.1.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.005 (39.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N.

Affected products

Deno
Denoland Deno — versions < 1.41.1

Weakness classification (CWE)

CWE-20 — Improper Input Validation

Public proof-of-concept exploits

KTH-LangSec/server-side-prototype-pollution

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2024-27931?: CVE-2024-27931 is a medium-severity vulnerability in Deno, classified under Improper Input Validation. CVSS score: 5.8/10. Published 2024-03-05.
How severe is CVE-2024-27931?: Medium severity. CVSS v3 base score is 5.8 out of 10.
Is CVE-2024-27931 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.