Unauthenticated SQL Injection in Metacat Data Repository Software
CVE-2026-48114

9.8CRITICAL

Key Information:

Vendor

Nceas

Status
Metacat
Vendor
CVE Published:
15 June 2026

What is CVE-2026-48114?

Metacat, a data repository software, contains an unauthenticated SQL injection vulnerability in its /harvesterRegistration endpoint. The vulnerability arises from the improper handling of parameters during the construction of SQL statements, specifically within the HarvesterRegistration.dbInsert() function. This flaw allows attackers to manipulate the unit, contactEmail, and documentListURL parameters, leading to unauthorized access to the Metacat database. The PostgreSQL backend's support for stacked queries via Statement.executeUpdate() exacerbates the issue, granting attackers extensive permissions to read, write, and execute commands within the database context. Users are encouraged to upgrade to Metacat version 3.0.0 or higher to mitigate this risk.

Affected Version(s)

metacat >= 2.0.0, < 3.0.0

References

https://github.com/NCEAS/metacat/security/advisories/GHSA...
x_refsource_CONFIRM
https://github.com/NCEAS/metacat/commit/820d595309b399fdb...
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.