What is CVE-2026-47754?

CVE-2026-47754 is a critical-severity vulnerability in Nceas Metacat, classified under Path Traversal. CVSS score: 9.3/10. Published 2026-08-10.

How severe is CVE-2026-47754?

Critical severity. CVSS v3 base score is 9.3 out of 10.

Auth bypass in Nceas Metacat

CVE-2026-47754

Metacat is data repository software that helps researchers preserve, share, and discover data. Versions 2.x through 2.19.1 and all 1.x versions contain an unauthenticated path traversal in the `archiveEntryName` parameter of the `action=re…

Vulnerability class: Path Traversal (Directory Traversal)

CVSS v3 metric

CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N.

Affected products

Nceas Metacat — versions < 3.0.0

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-47754?: CVE-2026-47754 is a critical-severity vulnerability in Nceas Metacat, classified under Path Traversal. CVSS score: 9.3/10. Published 2026-08-10.
How severe is CVE-2026-47754?: Critical severity. CVSS v3 base score is 9.3 out of 10.