Improper neutralization of input used for LLM prompting in the environment tool in Strands Agents Tools before 0.8.6 might allow remote actors to obtain the agent host's environment variables in cleartext, including cloud credentials and API keys, via a crafted prompt that disables the tool's secret masking.



To remediate this issue, users should upgrade to version 0.8.6 or later and rotate any credentials that were present in the environment of agents that loaded the environment tool.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements Present

User Interaction Active

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
amazon strands-agents-tools unaffected
Version Status Constraints
0.1.0 affected < 0.8.6

No data.

No data.

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Project Subscriptions

Vendors Products
Amazon Subscribe
Strands-agents-tools Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://aws.amazon.com/security/security-bulletins/2026-154-aws/ cve-icon cve-icon
https://github.com/strands-agents/tools/releases#release-v0.8.6 cve-icon cve-icon
https://github.com/strands-agents/tools/security/advisories/GHSA-qjx4-hg6g-2f34 cve-icon cve-icon
History

Wed, 28 Oct 2026 19:45:00 +0000

Type Values Removed Values Added
Description Improper neutralization of input used for LLM prompting in the environment tool in Strands Agents Tools before 0.8.6 might allow remote actors to obtain the agent host's environment variables in cleartext, including cloud credentials and API keys, via a crafted prompt that disables the tool's secret masking. To remediate this issue, users should upgrade to version 0.8.6 or later and rotate any credentials that were present in the environment of agents that loaded the environment tool.
Title Secret masking bypass in the environment tool in Strands Agents Tools
First Time appeared Amazon
Amazon strands-agents-tools
Weaknesses CWE-1427
CPEs cpe:2.3:a:amazon:strands-agents-tools:*:*:*:*:*:*:*:*
Vendors & Products Amazon
Amazon strands-agents-tools
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 5.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: AMZN

Published:

Updated: 2026-10-28T19:37:36.733Z

Reserved: 2026-10-22T13:11:05.160Z

Link: CVE-2026-115415

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-28T20:17:20.793

Modified: 2026-10-28T20:17:20.793

Link: CVE-2026-115415

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-28T20:30:07Z

Weaknesses