CVE-2026-83551
Cleartext storage of HMAC signing key in Amazon SageMaker Python SDK @step/@remote pipeline path
Description
Cleartext storage of sensitive information in the @step and @remote decorator pipeline component in Amazon SageMaker Python SDK before v3.11.0 and v2.256.0 might allow an authenticated remote user to extract the HMAC signing key from SageMaker DescribePipeline API responses and forge valid integrity signatures for specially crafted function payloads, achieving code execution in another user's pipeline execution context within the same AWS account.
INFO
Published Date :
Sept. 1, 2026, 6:11 p.m.
Last Modified :
Sept. 1, 2026, 6:14 p.m.
Remotely Exploit :
Yes !
Source :
AMZN
Affected Products
The following products are affected by CVE-2026-83551
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | ff89ba41-3aa1-4d27-914a-91399e9639e5 | ||||
| CVSS 4.0 | HIGH | ff89ba41-3aa1-4d27-914a-91399e9639e5 |
Solution
- Update Amazon SageMaker Python SDK to v3.11.0 or later.
- Update Amazon SageMaker Python SDK to v2.256.0 or later.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-83551 vulnerability anywhere in the article.