CVE-2026-29786
Path traversal via drive-relative hardlink in node-tar before 7.5.10.
Is CVE-2026-29786 being exploited?
Not confirmed. CVE-2026-29786 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.44% probability of exploitation in the next 30 days.
How severe is CVE-2026-29786?
CVE-2026-29786 is rated High with a CVSS score of 8.2. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-29786?
Yes. A fix has been recorded for CVE-2026-29786. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-29786 affect?
CVE-2026-29786 affects node-tar <=7.5.9, Node.js apps using node-tar <7.5.10. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-29786?
Upgrade node-tar to 7.5.10+
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Overwrite files outside extraction dir via crafted tar during tar.x() (untrusted tar).
Patch when possible
- affected< 7.5.10
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.