CVE-2026-34400
EPSS 0.02%alerta-server has potential SQL Injection vulnerability in Query String Syntax (q=) API
Description
### Impact The Query string search API (q=) was vulnerable to SQL injection via the Postgres query parser, which built WHERE clauses by interpolating user-supplied search terms directly into SQL strings via f-strings. ### Patches Fixed in v9.1.0. The Postgres query parser now uses parameterized queries with %(name)s placeholders passed to psycopg2's cursor.execute(), preventing SQL injection through the ?q= parameter. The MongoDB backend was not affected. ### Workarounds Upgrade to v9.1.0 or later. If unable to upgrade, deploy a proxy in front of the Alerta API to sanitize the q= parameter. ### Resources https://github.com/alerta/alerta/pull/712/files https://owasp.org/www-community/attacks/SQL_Injection
Affected packages (1)
- PyPI/alerta-serverfrom 0, < 9.1.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N |
References (8)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-34400
- PATCHhttps://github.com/alerta/alerta
- WEBhttps://github.com/alerta/alerta/commit/aeba85a37a09e5769a7a2da56481aa979ff99a00
- WEBhttps://github.com/alerta/alerta/commit/fdd52cd1abad8d02d1dfb8ecdcdbb43b6af3b883
- WEBhttps://github.com/alerta/alerta/pull/2040
- WEBhttps://github.com/alerta/alerta/pull/712
- WEBhttps://github.com/alerta/alerta/releases/tag/v9.1.0
- WEBhttps://github.com/alerta/alerta/security/advisories/GHSA-8prr-286p-4w7j