EXECUTIVE SUMMARY:
CVE-2026-8838 with a CVSS score of 9.8 is a remote code execution vulnerability in the amazon-redshift-python-driver, the official Python connector for Amazon Redshift, affecting versions 2.1.13 and earlier. The driver improperly validates data returned from the server during query result processing, allowing a malicious Redshift server—or a man‑in‑the‑middle attacker controlling the PostgreSQL wire‑protocol stream—to embed crafted payloads that are fed directly into an eval() call. Exploitation requires only network access to the client and no prior authentication; the attacker simply establishes a connection to the vulnerable client and sends specially crafted query responses, which the driver evaluates as Python code. Successful exploitation grants the attacker arbitrary code execution in the context of the client process, enabling command execution, file system access, credential theft, or lateral movement with the privileges of the running application. Business impact includes potential data breach, loss of integrity, service disruption, and compliance violations, as the compromised client could be used to exfiltrate sensitive data or sabotage workloads. Exploitation depends on the client connecting to a rogue server that can deliver the malicious payload; otherwise, the vulnerability remains dormant.[/subscribe_to_unlock_form]
EXECUTIVE SUMMARY:
CVE-2026-8838 with a CVSS score of 9.8 is a remote code execution vulnerability in the amazon-redshift-python-driver, the official Python connector for Amazon Redshift, affecting versions 2.1.13 and earlier. The driver improperly validates data returned from the server during query result processing, allowing a malicious Redshift server—or a man‑in‑the‑middle attacker controlling the PostgreSQL wire‑protocol stream—to embed crafted payloads that are fed directly into an eval() call. Exploitation requires only network access to the client and no prior authentication; the attacker simply establishes a connection to the vulnerable client and sends specially crafted query responses, which the driver evaluates as Python code. Successful exploitation grants the attacker arbitrary code execution in the context of the client process, enabling command execution, file system access, credential theft, or lateral movement with the privileges of the running application. Business impact includes potential data breach, loss of integrity, service disruption, and compliance violations, as the compromised client could be used to exfiltrate sensitive data or sabotage workloads. Exploitation depends on the client connecting to a rogue server that can deliver the malicious payload; otherwise, the vulnerability remains dormant.[emaillocker id="1283"]
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REFERENCES:
The following reports contain further technical details:
https://github.com/advisories/GHSA-29h4-r29x-hchv