CVE-2026-19111

High

Description

Insecure direct object reference in the mongodb_memory, elasticsearch_memory, and mem0_memory tools in Amazon Strands Agents Tools before 0.8.3 might allow remote authenticated users to access, modify, or delete memories belonging to other tenants by influencing the LLM to emit tool calls with a forged namespace parameter. To remediate this issue, users should upgrade to version 0.8.3.

SeverityHigh

CVSS8.1

Exploit probability—

ProductAws Strands-agents-tools

PublishedAug 6, 2026

First seenAug 6, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Update

AWS strands-agents-tools0.8.3 or later

Patches

pypi.org/project/strands-agents-tools/0.8.3/

Vendor advisories

Affected products

Product	Affected versions	Fixed in
AWS strands-agents-tools	v < 0.8.3	0.8.3

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