{"id":"CVE-2026-34400","aliases":["GHSA-8prr-286p-4w7j","PYSEC-2026-2341"],"title":"alerta-server has potential SQL Injection vulnerability in Query String Syntax (q=) API","summary":"alerta-server has potential SQL Injection vulnerability in Query String Syntax (q=) API","severity":"medium","vendor":"alerta-server","product":"alerta-server","ecosystem":"pip","affected":["alerta-server < 9.1.0"],"patched":["alerta-server 9.1.0"],"published":"2026-03-31","updated":"2026-07-13","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-8prr-286p-4w7j","references":[{"url":"https://github.com/alerta/alerta/security/advisories/GHSA-8prr-286p-4w7j"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34400"},{"url":"https://github.com/alerta/alerta/pull/2040"},{"url":"https://github.com/alerta/alerta/pull/712"},{"url":"https://github.com/alerta/alerta/commit/aeba85a37a09e5769a7a2da56481aa979ff99a00"},{"url":"https://github.com/alerta/alerta/commit/fdd52cd1abad8d02d1dfb8ecdcdbb43b6af3b883"},{"url":"https://github.com/alerta/alerta"},{"url":"https://github.com/alerta/alerta/releases/tag/v9.1.0"}],"tags":["osv","pip"],"epss":0.0059,"epssPercentile":0.45882,"ingestedAt":"2026-07-13T18:57:55.230Z","slug":"CVE-2026-34400","body":"## Overview\n\n### Impact\nThe 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.\n\n### Patches\nFixed 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.\n\n### Workarounds\nUpgrade to v9.1.0 or later. If unable to upgrade, deploy a proxy in front of the Alerta API to sanitize the q= parameter.\n\n### Resources\nhttps://github.com/alerta/alerta/pull/712/files\nhttps://owasp.org/www-community/attacks/SQL_Injection\n\n## Affected packages\n\n- `alerta-server < 9.1.0`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `alerta-server 9.1.0`","depth":"sunlit","depthScore":28,"depthScoreParts":{"impact":27.5,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}