CVE-2026-34400

Name: CVE-2026-34400
Creator: NVD / NIST
Published: 2026-03-31T22:16:18.287+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.9/10EPSS 0.51%

Last modified Jun 17, 2026

CVE-2026-34400 is a medium-severity vulnerability rated 6.9/10 on the CVSS scale. Alerta is a monitoring tool. Prior to version 9.1.0, 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. EPSS estimates a 0.51% chance of exploitation in the next 30 days.

Description

Alerta is a monitoring tool. Prior to version 9.1.0, 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. This issue has been patched in version 9.1.0.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

6.9/10

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

EPSS Probability

0.51%

39.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-89

Affected Software

Vendor	Product	Versions
Alerta Project	Alerta	< 9.1.0

References

https://github.com/alerta/alerta/commit/aeba85a37a09e5769a7a2da56481aa979ff99a00Patch
https://github.com/alerta/alerta/commit/fdd52cd1abad8d02d1dfb8ecdcdbb43b6af3b883Patch
https://github.com/alerta/alerta/pull/2040Issue Tracking, Patch
https://github.com/alerta/alerta/pull/712Issue Tracking, Patch
https://github.com/alerta/alerta/releases/tag/v9.1.0Product, Release Notes
https://github.com/alerta/alerta/security/advisories/GHSA-8prr-286p-4w7jVendor Advisory

Timeline

Published: Mar 31, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-34400?

How severe is CVE-2026-34400?

CVE-2026-34400 has a CVSS score of 6.9/10 (MEDIUM severity). The EPSS model estimates a 0.51% probability of exploitation in the next 30 days.

How do I fix CVE-2026-34400?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-34400?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST