VDB-364092 · CVE-2026-8597 · GHSA-rq6v-x3j8-7qgf

Amazon SageMaker Python SDK up to 2.257.1/3.7.1 Pickle integrity check

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.8	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Amazon SageMaker Python SDK up to 2.257.1/3.7.1. This vulnerability affects unknown code of the component Pickle Handler. The manipulation results in integrity check. This vulnerability is reported as CVE-2026-8597. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Amazon SageMaker Python SDK up to 2.257.1/3.7.1. It has been classified as problematic. Affected is an unknown functionality of the component Pickle Handler. The manipulation with an unknown input leads to a integrity check vulnerability. CWE is classifying the issue as CWE-354. The product does not validate or incorrectly validates the integrity check values or "checksums" of a message. This may prevent it from detecting if the data has been modified or corrupted in transmission. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Missing integrity verification in the Triton inference handler in Amazon SageMaker Python SDK v2 before v2.257.2 and v3 before v3.8.0 might allow a remote authenticated actor to achieve code execution in inference containers via replacement of model artifacts in S3 with a specially crafted pickle payload that is deserialized without verification. This issue requires a remote authenticated actor with S3 write access to the model artifact path. To remediate this issue, we recommend upgrading to Amazon SageMaker Python SDK v2.257.2 or v3.8.0 and rebuild any Triton models previously created with ModelBuilder using the updated SDK.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-8597 since 05/14/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Additional levels of successful authentication are required for exploitation. There are neither technical details nor an exploit publicly available.

Upgrading to version 2.257.2 or 3.8.0 eliminates this vulnerability. The upgrade is hosted for download at github.com.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-30423). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Programming Language Software

Name

Amazon SageMaker Python SDK

Version

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.7
VulDB Temp Score: 4.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.2
CNA Vector (AMZN): 🔒

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Integrity check
CWE: CWE-354 / CWE-345
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Amazon SageMaker Python SDK 2.257.2/3.8.0

Timelineinfo

05/14/2026 CVE reserved
05/15/2026 +1 days Advisory disclosed
05/15/2026 +0 days VulDB entry created
05/22/2026 +7 days VulDB entry last update

Sourcesinfo

Advisory: GHSA-rq6v-x3j8-7qgf
Status: Confirmed

CVE: CVE-2026-8597 (🔒)
GCVE (CVE): GCVE-0-2026-8597
GCVE (VulDB): GCVE-100-364092
EUVD: 🔒

Entryinfo

Created: 05/15/2026 04:47
Updated: 05/22/2026 02:17
Changes: 05/15/2026 04:47 (77), 05/22/2026 02:17 (1)
Complete: 🔍
Cache ID: 216::103