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VulnerabilityPublished

CVE-2026-58039: nodejs node · Improper Access Control – Generic

Affects nodejs nodeSource CVE Database V5

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Not known to be exploited · CVSS 3.3 Low.

Data as of 29 Oct 2026, 07:15 UTC

CVSS 3.0 base score
3.3Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 31 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    Public exploit code: GitHub proofs of concept

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), GitHub proofs of concept, the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
nodejsnodeAffected
  • >=26.5.0 <=26.5.0
  • >=24.18.0 <=24.18.0
  • >=22.23.1 <=22.23.1
Fixed in–
npmnodepkg:npm/nodeOther threatsAffected
  • =22.23.1
  • =24.18.0
  • =26.5.0
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Until an official fix is released, users should carefully review and restrict the use of process.report and the --allow-fs-write option to trusted contexts. Monitoring for updates from the Node.js project is recommended.

Description

CVE-2026-58039 is a vulnerability in Node.js affecting versions 22.x, 24.x, and 26.x. It involves improper access control in the Node.js permission model, allowing process.report to write or overwrite files outside the intended --allow-fs-write paths. This flaw can lead to confidentiality impacts or bypass of security boundaries under certain configurations. The vulnerability has a low severity rating with a CVSS score of 3.3.

References

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