CVE-2026-48114

CRITICAL 9.8

Metacat has an unauthenticated SQL injection vulnerability

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

Metacat is data repository software that helps researchers preserve, share, and discover data. Versions 2.0.0 and and above contain an unauthenticated SQL injection in the /harvesterRegistration endpoint. HarvesterRegistration.dbInsert() builds an INSERT against HARVEST_SITE_SCHEDULE via string concatenation, using a quoteString() helper that performs raw single-quote wrapping without escaping. Three request parameters reach the sink: unit, contactEmail, and documentListURL. The servlet does not verify a real LDAP identity. Allowing the vulnerable insert to proceed. Since the PostgreSQL backend permits stacked queries via Statement.executeUpdate(), this vulnerability allows full read/write/execute access in the Metacat database context. The vulnerability was remediated in Metacat 3.0.0.

CWE	CWE-89 CWE-287
Vendor	nceas
Product	metacat
Published	Jun 15, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

NCEAS / metacat

>= 2.0.0, < 3.0.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/NCEAS/metacat/security/advisories/GHSA-wrc6-rc34-hrcg github.com: https://github.com/NCEAS/metacat/commit/820d595309b399fdbdf4983bd1b1dd795773472a