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2 vulnerabilities found for strands-agents by AWS
CVE-2026-115419 (GCVE-0-2026-115419)
Vulnerability from nvd – Published: 2026-10-22 20:04 – Updated: 2026-10-22 20:04
VLAI
EPSS
VEX
Title
Unintended disclosure of data element to wrong session in Strands Agents SDK A2A Server
Summary
The A2A server component in Amazon Strands Agents SDK for Python before 1.43.0 and Amazon Strands Agents SDK for TypeScript before 1.5.0 does not properly isolate conversation state between callers. An authenticated remote user could read other tenants' conversation history and add persistent instructions that alter model behavior for subsequent callers via HTTP requests to the A2A endpoint using a different context_id.
To mitigate this issue, users should upgrade to strands-agents 1.43.0 (Python) or @strands-agents/sdk 1.5.0 (TypeScript).
Severity
CWE
- CWE-488 - Exposure of data element to wrong session
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://pypi.org/project/strands-agents/1.43.0/ | release-notespatch |
| https://www.npmjs.com/package/@strands-agents/sdk… | release-notespatch |
| https://aws.amazon.com/security/security-bulletin… | vendor-advisory |
| https://github.com/strands-agents/harness-sdk/sec… | third-party-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| AWS | strands-agents |
Affected:
0 , < 1.43.0
(custom)
cpe:2.3:a:aws:strands-agents:*:*:*:*:*:*:*:* |
|
| AWS | strands-agents/sdk |
Affected:
0 , < 1.5.0
(custom)
cpe:2.3:a:aws:strands-agents_sdk:*:*:*:*:*:*:*:* |
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CVE-2026-115419 (GCVE-0-2026-115419)
Vulnerability from cvelistv5 – Published: 2026-10-22 20:04 – Updated: 2026-10-22 20:04
VLAI
EPSS
VEX
Title
Unintended disclosure of data element to wrong session in Strands Agents SDK A2A Server
Summary
The A2A server component in Amazon Strands Agents SDK for Python before 1.43.0 and Amazon Strands Agents SDK for TypeScript before 1.5.0 does not properly isolate conversation state between callers. An authenticated remote user could read other tenants' conversation history and add persistent instructions that alter model behavior for subsequent callers via HTTP requests to the A2A endpoint using a different context_id.
To mitigate this issue, users should upgrade to strands-agents 1.43.0 (Python) or @strands-agents/sdk 1.5.0 (TypeScript).
Severity
CWE
- CWE-488 - Exposure of data element to wrong session
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://pypi.org/project/strands-agents/1.43.0/ | release-notespatch |
| https://www.npmjs.com/package/@strands-agents/sdk… | release-notespatch |
| https://aws.amazon.com/security/security-bulletin… | vendor-advisory |
| https://github.com/strands-agents/harness-sdk/sec… | third-party-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| AWS | strands-agents |
Affected:
0 , < 1.43.0
(custom)
cpe:2.3:a:aws:strands-agents:*:*:*:*:*:*:*:* |
|
| AWS | strands-agents/sdk |
Affected:
0 , < 1.5.0
(custom)
cpe:2.3:a:aws:strands-agents_sdk:*:*:*:*:*:*:*:* |
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