CVE-2026-59875: node-tar: Uncaught Exception DoS via NUL byte in PAX path/linkpath records

mediumCVSS 5.3CVE-2026-59875

CSIRTS triage

product: node-tar Denial of service

What: An uncaught exception in node-tar could lead to a denial of service via NUL byte in PAX path/linkpath records.
Who is affected: Users of node-tar are affected by this vulnerability.
Urgency: Remediation is medium urgency due to the medium severity of the vulnerability.
Action: Update to the latest version of node-tar to mitigate the vulnerability.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: medium — CVSS 5.3
Published: 2026-07-14
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-59875

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-598750.29% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 21% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-59875	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for node-tar

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

high[NEW] [high] Red Hat Ansible Automation Platform (node-tar, linkify-it, protobufjs, brace-expansion, fast-uri,…cert-bund · 2026-07-31
mediumGHSA-r292-9mhp-454m: node-tar: Uncontrolled recursion in mapHas/filesFilter allows uncatchable stack-overflow …ghsa · 2026-07-24
mediumGHSA-w8wr-v893-vjvp: node-tar: Process crash via PAX numeric path type confusionghsa · 2026-07-20
criticalGHSA-23hp-3jrh-7fpw: node-tar: Decompression/parse DoS via unlimited inputghsa · 2026-07-20
highGHSA-8x88-c5mf-7j5w: node-tar: Negative tar entry size causes infinite loop in archive replaceghsa · 2026-07-20
mediumGHSA-gvwx-54wh-qm9j: node-tar: Uncaught Exception DoS via NUL byte in PAX path/linkpath recordsghsa · 2026-07-20