NangoHQ Nango up to 0.71.2 Orchestrator /v1/immediate TaskEventsHandler.notify group.key sql injection

Summaryinfo

A vulnerability classified as critical was found in NangoHQ Nango up to 0.71.2. Impacted is the function TaskEventsHandler.notify of the file /v1/immediate of the component Orchestrator. Such manipulation of the argument group.key leads to sql injection. This vulnerability is referenced as CVE-2026-125759. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in NangoHQ Nango up to 0.71.2. It has been rated as critical. Affected by this issue is the function TaskEventsHandler.notify of the file /v1/immediate of the component Orchestrator. The manipulation of the argument group.key with an unknown input leads to a sql injection vulnerability. Using CWE to declare the problem leads to CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Nango before 0.71.3 contains an sql injection vulnerability that allows unauthenticated attackers to execute arbitrary SQL by supplying a crafted task group key to the orchestrator API. Attackers can send a malicious group.key to POST /v1/immediate, which TaskEventsHandler.notify() interpolates into a Postgres NOTIFY statement, running stacked queries against the scheduler database.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-125759 since 11/10/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1505 by the MITRE ATT&CK project.

Upgrading to version 0.71.3 eliminates this vulnerability.

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Productinfo

Vendor

• NangoHQ

Name

• Nango

Version

• 0.71.0
• 0.71.1
• 0.71.2

Website

• Product: https://github.com/NangoHQ/nango/

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