CVE-2026-53655

mediumCVSS 5.5covered by 1 sourcefirst seen 2026-06-09

CSIRTS triage

What: Applies PAX size override to intermediary GNU long-name/long-link headers, causing tar parser interpretation differential (file smuggling).
Who is affected: Deployments of node-tar.
Urgency: Remediation is important due to the medium severity and potential for file manipulation.
Action: Update node-tar to the latest version.

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

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Low exploitation risk0.11% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all EPSS-scored CVEs.

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