Paper/Archive/CVE-2026-48114

CVE-2026-48114

NCEAS metacat — Metacat has an unauthenticated SQL injection vulnerability

CVSS 9.8 (CNA)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 31.0.310 × 206.2 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

metacat>= 2.0.0, < 3.0.0–CNA

Scores by source

GitHub_M (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refgithub.com/NCEAS/metacat/security/advisories/GHSA-wrc6-rc34-hrcg refgithub.com/NCEAS/metacat/commit/820d595309b399fdbdf4983bd1b1dd795773472a