Vulnerability · Published May 22, 2026 · Assigned by AMZN

CVE-2026-9291Insecure Deserialization in Amazon Braket SDK Job Results Processing

High 7.1

In plain English

A high-severity unsafe deserialization in Amazon Braket Python SDK from AWS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.1High

Exploit odds (30 days)0.4%top 67.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Insecure deserialization in the job results processing component in Amazon Braket SDK before 1.117.0 might allow a remote authenticated user with S3 write access to the job output bucket to achieve arbitrary code execution on any machine that processes job results. We recommend you upgrade to amazon-braket-sdk version 1.117.0 or later.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
PyPI	amazon-braket-sdk	1.117.0	GHSA-g697-2xrc-gc46
PyPI	amazon-braket-sdk	1.117.0	PYSEC-2026-2342

Affected products (as reported)

Vendor	Product	Versions
AWS	Amazon Braket Python SDK	1.10.0 – before 1.117.0

Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

References

https://github.com/amazon-braket/amazon-braket-sdk-python/releases/tag/v1.117.0 patch
https://aws.amazon.com/security/security-bulletins/2026-036-aws/ vendor-advisory
https://github.com/amazon-braket/amazon-braket-sdk-python/security/advisories/GHSA-g697-2xrc-gc46 third-party-advisory