CVE-2026-50268

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

State: Published
Severity: 1.9 Low
Published: Jun 17, 2026
Updated: Jun 18, 2026
Reserved: Jun 4, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	1.9 Low	CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N	GitHub_M

Weaknesses

CWE-256 Plaintext Storage of a Password
CWE-327 Use of a Broken or Risky Cryptographic Algorithm

Affected Products

Product	Versions
Steeltoe.Configuration.EncryptionSteeltoeOSS	>= 4.0.0, < 4.2.0Affected

References

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