Is tar affected by CVE-2026-53655?

npm tar is affected in <7.5.16.

Is CVE-2026-53655 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.2%.

medium

CVE-2026-53655

Q: Is CVE-2026-53655 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.2%.

npm · tar

Summary

node-tar applies PAX size override to intermediary GNU long-name/long-link headers, causing tar parser interpretation differential (file smuggling)

Severity: medium
EPSS: 0.2% (p5)
Also known as: GHSA-vmf3-w455-68vh
Published: 2026-06-15

References

https://github.com/isaacs/node-tar/security/advisories/GHSA-vmf3-w455-68vh
https://github.com/isaacs/node-tar

Related advisories

CVE-2026-59873 — critical · npm/tar
CVE-2026-59874 — high · npm/tar
CVE-2021-38511 — high · crates.io/tar
GHSA-r292-9mhp-454m — medium · npm/tar
CVE-2026-59871 — medium · npm/tar
CVE-2026-59875 — medium · npm/tar
GHSA-3pv8-6f4r-ffg2 — medium · crates.io/tar
CVE-2026-33056 — medium · crates.io/tar

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.