CVE-2026-50268
Steeltoe: OAEP setting silently selects PKCS#1 v1.5 padding
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
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.
Timeline
ID reserved
By GitHub_M
- 13 days later
· 13 days later
Published
- 1 day later
· 1 day later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Low1.9 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N |
| NVDNVD · Deferred | 3.1 | Low1.9 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.05% · top 100% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 1.9.
Weakness
Affected products
SteeltoeOSS · Steeltoe.Configuration.Encryption
- affected >= 4.0.0, < 4.2.0
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- NuGetSteeltoe.Configuration.EncryptionGHSA-4j9m-h44m-2hv8 (opens in a new tab)
References (2)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-4j9m-h44m-2hv8 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-50268)Record last updated .