Low 1.9Published Jun 17, 2026

CVE-2026-50268Steeltoe: OAEP setting silently selects PKCS#1 v1.5 padding

Updated under an hour ago (Oct 27, 2026, 5:23 PM ET)

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It affects SteeltoeOSS Steeltoe.Configuration.Encryption. Add what you run to find out whether that includes you.

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Every CVE for SteeltoeOSS Steeltoe.Configuration.Encryption

Exploited in the last 30 days

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.

CVSS: 1.9 LOW (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-256, CWE-327
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Jun 18, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

SteeltoeOSS Steeltoe.Configuration.Encryption steeltoeoss:steeltoe.configuration.encryption (from the name)	from 4.0.0, < 4.2.0	CNA record

References

References

https://github.com/SteeltoeOSS/security-advisories/security/advisories/GHSA-4j9m-h44m-2hv8	x-refsource-confirm
https://github.com/SteeltoeOSS/Steeltoe/commit/6cfee5cccddf8f9a31de69b0ca5ccdd771b73e5b	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.