SteeltoeOSS Steeltoe.Configuration.Encryption up to 4.1.x Setting OAEP credentials storage

CVSS Meta Temp Score
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CTI Interest Score
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1.9$0-$5k3.36-

Summaryinfo

A vulnerability was found in SteeltoeOSS Steeltoe.Configuration.Encryption up to 4.1.x. It has been rated as problematic. This vulnerability affects unknown code of the component Setting Handler. The manipulation of the argument OAEP leads to credentials storage. This vulnerability is referenced as CVE-2026-50268. The attack can only be performed from a local environment. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in SteeltoeOSS Steeltoe.Configuration.Encryption up to 4.1.x and classified as problematic. This issue affects an unknown function of the component Setting Handler. The manipulation of the argument OAEP with an unknown input leads to a credentials storage vulnerability. Using CWE to declare the problem leads to CWE-256. Storing a password in plaintext may result in a system compromise. Impacted is confidentiality. The summary by CVE is:

Steeltoe is an open source project that provides a collection of libraries that helps users build cloud-native applications. In Steeltoe.Configuration.Encryption 4.0.0 through 4.1.0, configuring `encrypt:rsa:algorithm=OAEP` does not enable OAEP encryption. Due to an incorrect BouncyCastle transformation string, the `OAEP` setting selects PKCS#1 v1.5, which is the same algorithm as the `DEFAULT` setting. Steeltoe.Configuration.Encryption version 4.2.0 patches the issue.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-50268 since 06/04/2026. The exploitation is known to be difficult. Attacking locally is a requirement. The exploitation requires an enhanced level of successful authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1552 according to MITRE ATT&CK.

Upgrading to version 4.2.0 eliminates this vulnerability. Applying the patch 6cfee5cccddf8f9a31de69b0ca5ccdd771b73e5b is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 1.9
VulDB Meta Temp Score: 1.9

VulDB Base Score: 1.9
VulDB Temp Score: 1.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 1.9
CNA Vector (GitHub_M): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Credentials storage
CWE: CWE-256 / CWE-255
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Steeltoe.Configuration.Encryption 4.2.0
Patch: 6cfee5cccddf8f9a31de69b0ca5ccdd771b73e5b

Timelineinfo

06/04/2026 CVE reserved
06/18/2026 +14 days Advisory disclosed
06/18/2026 +0 days VulDB entry created
06/18/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: GHSA-4j9m-h44m-2hv8
Status: Confirmed

CVE: CVE-2026-50268 (🔒)
GCVE (CVE): GCVE-0-2026-50268
GCVE (VulDB): GCVE-100-372155

Entryinfo

Created: 06/18/2026 07:41
Changes: 06/18/2026 07:41 (68)
Complete: 🔍
Cache ID: 216::103

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