CVE-2026-8838

criticalpriority · track · 10EPSS 0.008 · 57 %ileexploit · PoCEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

2 exploits · PoC

Likely / severe?

0.81% (57th) EPSS

CVSS 9.8 · critical

Is it mine?

2 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · osv

EPSS · scored 2026-10-28

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 this issue, users should upgrade to version 2.1.14.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.9–9.8

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v4.09.3criticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.09.3criticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary

v4.08.9highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-94USCWE-94US

exploits (2)

Public proof-of-concept and weaponised exploit code.

Maxime288/CVE-2026-8838-RCEMaxime288/CVE-2026-8838-RCEPoC · poc_in_github
Sana-404/CVE-2026-8838-Mitigation-and-DetectionSana-404/CVE-2026-8838-Mitigation-and-DetectionPoC · poc_in_github

affected products (2)

Products and version ranges known to be affected.

aws Amazon Redshift connector for Python≤ 0 ≤2.1.13enisa_euvdEU
PyPI redshift-connector< 2.1.14osvUSpkg:pypi/redshift-connector

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-29h4-r29x-hchvamazon-redshift-python-driver vulnerable to Remote Code Execution via eval() Injection2026-05-29ghsa · osvUS
### 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.
PYSEC-2026-521amazon-redshift-python-driver vulnerable to Remote Code Execution via eval() Injection2026-06-29vendor · osvUS
### 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.

also known as (6)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv NVD CVE.org MITRE

published 2026-05-18modified 2026-07-23

references (8)

External citations — patches, advisories, analysis.

scry

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