CVE-2026-59874

Summary

node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.18, tar.replace accepts a checksum-valid tar header with a negative base-256 encoded entry size, causing the archive scanner to make no progress while repeatedly parsing the same header. This issue is fixed in version 7.5.18.

Affected Software

Weaknesses

• CWE-835: CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: partial

Additional References

• https://github.com/isaacs/node-tar/security/advisories/GHSA-8x88-c5mf-7j5w

References

• https://github.com/isaacs/node-tar/security/advisories/GHSA-8x88-c5mf-7j5w
• https://github.com/isaacs/node-tar/commit/9e78bf058b2c22dd4d52e00d8922d5c06fc2f7b5
• https://github.com/isaacs/node-tar/releases/tag/v7.5.18

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