What is CVE-2026-8838?

CVE-2026-8838 is a critical-severity vulnerability in Aws Amazon Redshift Connector For Python, classified under Code Injection. CVSS score: 9.8/10. Published 2026-05-18.

How severe is CVE-2026-8838?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2026-8838 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Aws Amazon Redshift Connector For Python

CVE-2026-8838

Unsafe use of Python's eval() on server-received data in the vector_in() function in amazon-redshift-python-driver before 2.1.14 allows a rogue server or man-in-the-middle actor to execute arbitrary code on the client. To remediate thi…

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.001 (22.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Aws Amazon Redshift Connector For Python — versions 0

Weakness classification (CWE)

CWE-94 — Code Injection

Public proof-of-concept exploits

Maxime288/CVE-2026-8838-RCE

References

ff89ba41-3aa1-4d27-914a-91399e9639e5 (patch)
ff89ba41-3aa1-4d27-914a-91399e9639e5 (vendor-advisory)
ff89ba41-3aa1-4d27-914a-91399e9639e5 (third-party-advisory)

Frequently asked questions

What is CVE-2026-8838?: CVE-2026-8838 is a critical-severity vulnerability in Aws Amazon Redshift Connector For Python, classified under Code Injection. CVSS score: 9.8/10. Published 2026-05-18.
How severe is CVE-2026-8838?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2026-8838 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.