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Vulnerabilities

Vulnerability · CVE-2025-64118

node-tar is a Tar for Node.js.

Published Oct 30, 2025 · catalog updated Oct 30, 2025 · node-tar is a Tar

Last checked Nov 1, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-64118. EPSS is 0.13%. Act only if a listed version of node-tar is a Tar is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (node-tar is a Tar).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.13%
Remediation
Advisory link
Affected products
vendor isaacs node-tar = 7.5.1

node-tar is a Tar for Node.js. In 7.5.1, using .t (aka .list) with { sync: true } to read tar entry contents returns uninitialized memory contents if tar file was changed on disk to a smaller size while being read. This vulnerability is fixed in 7.5.2.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor isaacs node-tar = 7.5.1= 7.5.1

How to fix CVE-2025-64118

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-64118. EPSS is 0.13%. Act only if a listed version of node-tar is a Tar is installed.

Which versions are affected?

Compare what you have installed with isaacs node-tar = 7.5.1 = 7.5.1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.13%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 30, 2025 · EUVD

    Detected

    node-tar is a Tar for Node.js. In 7.5.1, using .t (aka .list) with { sync: true } to read tar entry contents returns uninitialized memory contents if tar file was changed on disk to a smaller size while being read. This vulnerability is fixed in 7.5.2.

  2. Oct 30, 2025 · EUVD

    Updated

    node-tar is a Tar for Node.js. In 7.5.1, using .t (aka .list) with { sync: true } to read tar entry contents returns uninitialized memory contents if tar file was changed on disk to a smaller size while being read. This vulnerability is fixed in 7.5.2.

Sources

  • CVE.orgVulnerability recordCVE-2025-64118

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-64118

    30-day exploitation probability 0.13%

    first.org
  • EUVDVulnerability recordEUVD-2025-37034

    node-tar is a Tar for Node.js. In 7.5.1, using .t (aka .list) with { sync: true } to read tar entry contents returns uninitialized memory contents if tar file was changed on disk to a smaller size while being read. This vulnerability is fixed in 7.5.2.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 1, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 1, 2026
  • CVE.orgOct 25, 2026
  • EUVDOct 25, 2026