How severe is CVE-2026-34612?

CVE-2026-34612 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-34612 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-34612?

CVE-2026-34612 affects Kestra. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-34612?

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-2026-34612 have an EU (EUVD) identifier?

Yes. CVE-2026-34612 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18903.

When was CVE-2026-34612 published?

CVE-2026-34612 was published on 2026-04-03 and last updated on 2026-06-17.

CVE-2026-34612

CVE-2026-34612 is a critical-severity vulnerability in Kestra with a CVSS 3.x base score of 9.9. 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 9.9)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-18903
Weakness: CWE-89
Affected product: Kestra
Published: 2026-04-03
Last modified: 2026-06-17

Description

Kestra is an open-source, event-driven orchestration platform. Prior to version 1.3.7, Kestra (default docker-compose deployment) contains a SQL Injection vulnerability that leads to Remote Code Execution (RCE) in the following endpoint "GET /api/v1/main/flows/search". Once a user is authenticated, simply visiting a crafted link is enough to trigger the vulnerability. The injected payload is executed by PostgreSQL using COPY ... TO PROGRAM ..., which in turn runs arbitrary OS commands on the host. This issue has been patched in version 1.3.7.

Frequently asked questions

What is CVE-2026-34612?: Kestra is an open-source, event-driven orchestration platform. Prior to version 1.3.7, Kestra (default docker-compose deployment) contains a SQL Injection vulnerability that leads to Remote Code Execution (RCE) in the following endpoint "GET /api/v1/main/flows/search". Once a user is authenticated, simply visiting a crafted link is enough to trigger the vulnerability. The injected payload is executed by PostgreSQL using COPY ... TO PROGRAM ..., which in turn runs arbitrary OS commands on the host. This issue has been patched in version 1.3.7.
How severe is CVE-2026-34612?: CVE-2026-34612 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-34612 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-34612?: CVE-2026-34612 affects Kestra. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-34612?: 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-2026-34612 have an EU (EUVD) identifier?: Yes. CVE-2026-34612 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18903.
When was CVE-2026-34612 published?: CVE-2026-34612 was published on 2026-04-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:kestra:kestra:*:*:*:*:*:*:*:*

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