Red Hat Security Advisory: Satellite 6.17.8 Async Update

Fixed packages 20

Vulnerabilities 5

• High 8.9
  CVE-2026-27727

  mchange-commons-java: Remote Code Execution via JNDI Reference Resolution

  mchange-commons-java, a library that provides Java utilities, includes code that mirrors early implementations of JNDI functionality, including support for remote `factoryClassLocation` values, by which code can be downloaded and invoked within a running appl…

  swaldman mchange-commons-java c3p0 com.mchange:mchange-commons-java Ubuntu Maven
  Feb 25, 2026
• High 8.6
  CVE-2026-25990

  Pillow has an out-of-bounds write when loading PSD images

  Pillow is a Python imaging library. From 10.3.0 to before 12.1.1, an out-of-bounds write may be triggered when loading a specially crafted PSD image. This vulnerability is fixed in 12.1.1.

  python-pillow Pillow open-webui kubeflow-pipelines-visualization-server Debian Ubuntu Alpine Wolfi PyPI
  Feb 11, 2026
• High 7.5
  CVE-2025-69534

  Python-Markdown version 3.8 contain a vulnerability where malformed HTML-like sequences can cause html.parser.HTMLParse…

  python3.4 python3.5 python2.7 python3.6 Debian Ubuntu Wolfi PyPI
  Mar 5, 2026
• High 7.2
  CVE-2026-27459

  pyOpenSSL DTLS cookie callback buffer overflow

  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…

  pyca pyopenssl airflow-3 py3-cassandra-medusa Debian Ubuntu Azure Linux Alpine Wolfi PyPI
  Mar 17, 2026
• Medium 6.6
  CVE-2026-33176

  Rails Active Support has a possible DoS vulnerability in its number helpers

  Active Support is a toolkit of support libraries and Ruby core extensions extracted from the Rails framework. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, Active Support number helpers accept strings containing scientific notation (e.g. `1e10000`), which …

  rails activesupport rails kube-fluentd-operator Debian Ubuntu Wolfi RubyGems
  Mar 23, 2026

References

• article
  https://access.redhat.com/security/updates/classification/#important
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2439170
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2442671
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2444839
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2448503
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2450551
• article
  https://issues.redhat.com/browse/SAT-43920
• article
  https://issues.redhat.com/browse/SAT-43921
• article
  https://issues.redhat.com/browse/SAT-43922
• article
  https://issues.redhat.com/browse/SAT-43923
• article
  https://issues.redhat.com/browse/SAT-43925
• article
  https://issues.redhat.com/browse/SAT-43926
• article
  https://issues.redhat.com/browse/SAT-43928
• article
  https://issues.redhat.com/browse/SAT-43929
• article
  https://issues.redhat.com/browse/SAT-43931
• article
  https://issues.redhat.com/browse/SAT-44039
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_14873.json
• report
  https://access.redhat.com/security/cve/CVE-2025-69534
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-69534
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-69534
• article
  https://github.com/Python-Markdown/markdown
• article
  https://github.com/Python-Markdown/markdown/actions/runs/15736122892
• article
  https://github.com/Python-Markdown/markdown/issues/1534
• report
  https://access.redhat.com/security/cve/CVE-2026-25990
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-25990
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-25990
• article
  https://github.com/python-pillow/Pillow/commit/9000313cc5d4a31bdcdd6d7f0781101abab553aa
• article
  https://github.com/python-pillow/Pillow/security/advisories/GHSA-cfh3-3jmp-rvhc
• report
  https://access.redhat.com/security/cve/CVE-2026-27459
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-27459
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-27459
• article
  https://github.com/pyca/pyopenssl/blob/358cbf29c4e364c59930e53a270116249581eaa3/CHANGELOG.rst
• article
  https://github.com/pyca/pyopenssl/commit/57f09bb4bb051d3bc2a1abd36e9525313d5cd408
• article
  https://github.com/pyca/pyopenssl/security/advisories/GHSA-5pwr-322w-8jr4
• report
  https://access.redhat.com/security/cve/CVE-2026-27727
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-27727
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-27727
• article
  https://github.com/swaldman/mchange-commons-java/security/advisories/GHSA-m2cm-222f-qw44
• article
  https://mogwailabs.de/en/blog/2025/02/c3p0-you-little-rascal