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CVE

CVE-2026-34400

alerta-server has potential SQL Injection vulnerability in Query String Syntax (q=) API
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CVE

CVE-2026-34400

alerta-server has potential SQL Injection vulnerability in Query String Syntax (q=) API

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

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
6.9
-
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
-
C
H
U
-

Related Resources

No items found.

References

https://github.com/alerta/alerta/security/advisories/GHSA-8prr-286p-4w7j, https://github.com/alerta/alerta/pull/2040, https://github.com/alerta/alerta/pull/712, https://github.com/alerta/alerta/commit/aeba85a37a09e5769a7a2da56481aa979ff99a00, https://github.com/alerta/alerta/commit/fdd52cd1abad8d02d1dfb8ecdcdbb43b6af3b883, https://github.com/alerta/alerta, https://github.com/alerta/alerta/releases/tag/v9.1.0

Severity

9.8

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
9.8
EPSS Probability
0.00012%
EPSS Percentile
0.01549%
Introduced Version
0
Fix Available
9.1.0

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