CVE-2026-34400

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.0%, top 95% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
39.6%
KEV
Not listed

Published

March 31, 2026

Last Modified

April 10, 2026

Advisory Details (6)

Auto-updated May 20, 2026
Patch available. Sources: github.
github Patch Available

Potential SQL Injection vulnerability in Query String Syntax (q=) API · Advisory · alerta/alerta · GitHub

Affected: v9.1.0. The Postgres query parser now uses parameterized queries with %(name)s pl

https://github.com/alerta/alerta/security/advisories/GHSA-8prr-286p-4w7j
generic

Release v9.1.0 · alerta/alerta · GitHub

https://github.com/alerta/alerta/releases/tag/v9.1.0
generic

Query string syntax for alerts by satterly · Pull Request #712 · alerta/alerta · GitHub

https://github.com/alerta/alerta/pull/712
generic

fix(security): parameterize Postgres query parser to prevent SQL inje… by satterly · Pull Request #2040 · alerta/alerta · GitHub

https://github.com/alerta/alerta/pull/2040
generic

fix(security): parameterize Postgres query parser to prevent SQL inje… · alerta/alerta@fdd52cd · GitHub

https://github.com/alerta/alerta/commit/fdd52cd1abad8d02d1dfb8ecdcdbb43b6af3b883
generic

Replace mongo-specific query stirng syntax with database agnostic (#712) · alerta/alerta@aeba85a · GitHub

https://github.com/alerta/alerta/commit/aeba85a37a09e5769a7a2da56481aa979ff99a00

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
alerta-server3.1.2 ... 9.0.4 (251 versions)9.1.0—

Data Freshness Timeline

(refreshed 9× in last 7d / 42× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 103 total refreshes for this CVE.

  1. 2026-07-12 05:46 UTCEPSS rescore
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  73. 2026-05-23 00:08 UTCEG score recompute
  74. 2026-05-20 22:38 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2026-34400?
CVE-2026-34400 is a critical vulnerability published on March 31, 2026. 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…
When was CVE-2026-34400 disclosed?
CVE-2026-34400 was first published in the National Vulnerability Database on March 31, 2026, with the most recent update on April 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-34400 actively exploited?
CVE-2026-34400 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 39.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-34400?
CVE-2026-34400 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-34400?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-34400, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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