RHUI 4 for RHEL 8 vulnerabilities

2 known vulnerabilities in RHUI 4 for RHEL 8 from Red Hat. 2 are rated high or critical. Each entry lists the affected versions and the release that fixes it, where the vendor has published one.

Latest first

• 9.8 Critical severity

  pyopenssl: Buffer Copy without Checking Size of Input

  CVE-2026-27459Mar 18, 2026Pyca

  pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 22.0.0 and prior to version 26.0.0, if a user provided callback to `set_cookie_generate_callback` returned a cookie value greater than 256 bytes, pyOpenSSL would overflow an OpenSSL

• 7.5 High severity

  urllib3: Improper Handling of Highly Compressed Data (Data Amplification)

  CVE-2026-21441Jan 7, 2026Urllib3EPSS 2.92%

  urllib3 is an HTTP client library for Python. urllib3's streaming API is designed for the efficient handling of large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. urllib3 can perform decodin