CVE-2026-7191
HIGHArbitrary Code Execution via Sandbox Bypass in the open source solution QnABot on AWS
Title source: cnaDescription
Improper use of the static-eval npm package in the open source solution qnabot-on-aws versions 7.2.4 and earlier may allow an authenticated administrator to execute arbitrary code within the fulfillment Lambda execution context by injecting a crafted conditional chaining expression via the Content Designer interface, which bypasses the intended expression sandbox through JavaScript prototype manipulation. This may grant direct access to backend resources (Lambda environment variables, OpenSearch indices, S3 objects, DynamoDB tables) that are not exposed through normal administrative interfaces. We recommend you upgrade to version 7.3.0 or above.
Scores
CVSS v3
7.2
EPSS
0.0007
EPSS Percentile
21.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-94
Status
published
Products (1)
AWS/QnABot on AWS
< 7.2.4
Published
Apr 27, 2026
Tracked Since
Apr 28, 2026