Rucio SQL injection in postgres_meta DID search path compromises PostgreSQL metadata database

Description

### Summary A SQL injection vulnerability exists in Rucio versions 1.30.0 and later before 35.8.5, 38.5.5, 39.4.2, and 40.1.1, in `FilterEngine.create_postgres_query()`. This allows any authenticated Rucio user to execute arbitrary SQL against the PostgreSQL metadata database through the DID search endpoint (`GET /dids/<scope>/dids/search`). When the `postgres_meta` metadata plugin is configured, attacker-controlled filter keys and values are interpolated directly into raw SQL strings via Python `.format()`, then passed to `psycopg3`'s `sql.SQL()` which treats the string as trusted SQL syntax. Depending on the database privileges assigned to the service account, exploitation can expose sensitive tables, modify or delete metadata, access server-side files, or achieve code execution through PostgreSQL features such as COPY ... FROM PROGRAM. This issue affects deployments that explicitly use the postgres_meta metadata plugin. This vulnerability has been fixed in versions 35.8.5, 38.5.5, 39.4.2, and 40.1.1.

Scores

EPSS (exploitation in 30 days)

0.30% · top 77% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.0.

Weakness

• CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') (opens in a new tab)All about CWE-89 and its CVEs

Affected products

• rucio · rucio

  • affected >= 1.30.0, < 35.8.5
  • affected >= 35.9.0, < 38.5.5
  • affected >= 38.6.0, < 39.4.2
  • affected >= 40.0.0, < 40.1.1

Affected packages

From reviewed advisories of the GitHub Advisory Database.

• PyPIrucioGHSA-6j7p-qjhg-9947 (opens in a new tab)

References (1)

• https://github.com/rucio/rucio/security/advisories/GHSA-6j7p-qjhg-9947 (opens in a new tab)x_refsource_CONFIRM

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisory GHSA-6j7p-qjhg-9947 (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-29090](https://trackcve.app/badge/CVE-2026-29090.svg)](https://trackcve.app/cve/CVE-2026-29090)

Record last updated 6 May 2026, 18:17 UTC.