CVE-2026-50268

Steeltoe: OAEP setting silently selects PKCS#1 v1.5 padding

Published Jun 17, 2026 CVSS 3.1 · 1.9 Low EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-4j9m-h44m-2hv8 Steeltoe: OAEP setting silently selects PKCS#1 v1.5 padding
History
Type Values Removed Values Added
First Time appeared Steeltoeoss
Steeltoeoss steeltoe.configuration.encryption
Vendors & Products Steeltoeoss
Steeltoeoss steeltoe.configuration.encryption
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Steeltoe: OAEP setting silently selects PKCS#1 v1.5 padding
Weaknesses CWE-256
CWE-327
References
Metrics cvssV3_1

{'score': 1.9, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jun 18, 2026, 1:53 PM
Reserved
Jun 4, 2026, 4:26 PM
Status
Deferred
Published
Jun 17, 2026, 11:17 PM
Modified
Oct 26, 2026, 11:10 AM