Code Injection in Amazon redshift-connector (CVE-2026-8838)
Summary
Code injection in Amazon redshift-connector (CVE-2026-8838). Successful exploitation can lead to full system takeover. Mitigation: upgrade to 2.1.14 or later.
Original description
The description as published by the source.
Summary
amazon-redshift-python-driver is the official Python connector for Amazon Redshift. In versions 2.1.13 and earlier, the driver insufficiently validates data received from the server during query result processing. A rogue server or man-in-the-middle could leverage this to execute arbitrary code on the client.
Impact
When a client connects to a rogue server implementing the PostgreSQL wire protocol, the server can send specially crafted query responses that the driver processes without adequate input validation. This could result in arbitrary code execution in the client process, potentially enabling command execution, file system access, or credential theft with the privileges of the client application.
Impacted versions: <=2.1.13
Patches
This has been addressed in amazon-redshift-python-driver version 2.1.14 (https://github.com/aws/amazon-redshift-python-driver/releases/tag/v2.1.14). Amazon Redshift recommends upgrading to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes.
References
If there are any questions or comments about this advisory, contact AWS Security via the issue reporting page or directly via email to aws-security@amazon.com. Please do not create a public GitHub issue.
Acknowledgement
Amazon Redshift would like to thank Kexin Chen (@ckx-sec) for collaborating through the coordinated disclosure process.
Source: AWS Security Bulletins NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-8838 has been found in Amazon redshift-connector.
Successful exploitation can lead to full system takeover. CVSS score: 9.8/10.
What to do: upgrade Amazon redshift-connector to 2.1.14 or later.
If unsure, ask your IT team or search "Amazon redshift-connector CVE-2026-8838" on the vendor's site.
CVE-2026-8838 (Amazon redshift-connector) — CWE-94 / CVSS v3 9.8
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: 2.1.14 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Arbitrary code execution (CWE-94) exists in Amazon redshift-connector.
Check the vendor advisory for the affected versions of Amazon redshift-connector.
Severity: Critical (CVSS 9.8/10). Successful exploitation can lead to full system takeover.
Update to 2.1.14.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'redshift-connector' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'redshift-connector' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
redshift-connectorを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade Amazon redshift-connector to 2.1.14ステージング環境で 2.1.14 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- advisory nvd.nist.gov
- AWS aws.amazon.com
- package github.com
- web aws.amazon.com
- web github.com
- web github.com
- web aws.amazon.com
- web github.com
- web github.com