CVE-2026-19111CWE-639

CVE-2026-19111

High · published August 7, 2026

CVSS v3.1
8.1
EPSS
1%
Percentile
43.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00519 · 43.3th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-08-07T02:16Z
References (3)
https://aws.amazon.com/security/security-bulletins/2026-077-aws/ · ff89ba41-3aa1-4d27-914a-91399e9639e5https://github.com/strands-agents/tools/security/advisories/GHSA-mpxq-953j-42m4 · ff89ba41-3aa1-4d27-914a-91399e9639e5https://pypi.org/project/strands-agents-tools/0.8.3/ · ff89ba41-3aa1-4d27-914a-91399e9639e5
EPSS history
Timeline
  • 06 AUG 18:03Z
    Insecure direct object reference in Strands Agents Tools memory tool namespace isolation
    cvelistv5