How severe is CVE-2024-27931?

CVE-2024-27931 has a CVSS 3.x base score of 5.8, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2024-27931 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-27931?

CVE-2024-27931 affects Deno. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-27931?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-27931 have an EU (EUVD) identifier?

Yes. CVE-2024-27931 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0943.

When was CVE-2024-27931 published?

CVE-2024-27931 was published on 2024-03-05 and last updated on 2026-06-17.

CVE-2024-27931

CVE-2024-27931 is a medium-severity vulnerability in Deno with a CVSS 3.x base score of 5.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 5.8)
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-0943
Weakness: CWE-20
Affected product: Deno
Published: 2024-03-05
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2024-27931?: CVE-2024-27931 has a CVSS 3.x base score of 5.8, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2024-27931 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-27931?: CVE-2024-27931 affects Deno. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-27931?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-27931 have an EU (EUVD) identifier?: Yes. CVE-2024-27931 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0943.
When was CVE-2024-27931 published?: CVE-2024-27931 was published on 2024-03-05 and last updated on 2026-06-17.

References

https://github.com/denoland/deno/security/advisories/GHSA-hrqr-jv8w-v9jh

Affected products (1)

cpe:2.3:a:deno:deno:*:*:*:*:*:*:*:*

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