How severe is CVE-2026-34400?

CVE-2026-34400 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-34400 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-34400?

CVE-2026-34400 affects Alerta Project Alerta. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-34400?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-34400 have an EU (EUVD) identifier?

Yes. CVE-2026-34400 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17664.

When was CVE-2026-34400 published?

CVE-2026-34400 was published on 2026-03-31 and last updated on 2026-06-17.

CVE-2026-34400

CVE-2026-34400 is a critical-severity vulnerability in Alerta Project Alerta with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-89.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 6.9
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-17664
Weakness: CWE-89
Affected product: Alerta Project Alerta
Published: 2026-03-31
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-34400?: 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.
How severe is CVE-2026-34400?: CVE-2026-34400 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-34400 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-34400?: CVE-2026-34400 affects Alerta Project Alerta. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-34400?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-34400 have an EU (EUVD) identifier?: Yes. CVE-2026-34400 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17664.
When was CVE-2026-34400 published?: CVE-2026-34400 was published on 2026-03-31 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:alerta_project:alerta:*:*:*:*:*:*:*:*

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