CVE-2026-19672: tarfile extraction filter bypass allows creation of directories outside the destination

unknownCVE-2026-19672

CSIRTS triage

Path traversal

What: Tarfile extraction filter can be bypassed to create directories outside the intended extraction destination.
Who is affected: Systems using tarfile extraction without proper directory traversal safeguards.
Urgency: Moderate; path-traversal risk during untrusted tarball extraction.
Action: Update to a patched version of the affected tarfile handling library.

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

Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: unknown
Published: 2026-08-11
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-19672

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-2026-196720.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 25% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-19672	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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Recent advisories for tarfile extraction filter

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.

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