Important: skopeo security update (Oracle Linux 9)

Summary

Fixed packages 2

Vulnerabilities 6

• High 7.5
  CVE-2026-33818

  Enforce maximum recursion depth in encoding/asn1

  Enforce a recursion limit in Unmarshal to prevent stack exhaustion when parsing deeply-nested, recursive structures.

  Go standard library encoding/asn1 katib-suggestion-hyperopt katib-suggestion-goptuna-compat Debian Ubuntu Azure Linux Alpine Wolfi Go
  Aug 13, 2026
• High 7.5
  CVE-2026-56853

  Apply ReadHeaderTimeout when doing unencrypted HTTP/2 check in net/http

  When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain the HTTP/2 client preface. ReadHeaderTimeout is unexpectedly not being applied when doing this.

  Go standard library net/http golang go Debian Ubuntu Azure Linux Alpine Wolfi Go
  Aug 13, 2026
• High 7.5
  CVE-2026-56862

  Limit handshake messages we are willing to accept post-handshake in crypto/tls

  Handshake messages, such as KeyUpdate, are always considered as state-advancing, regardless of whether a handshake has been completed or not. As a result, a malicious client can keep sending KeyUpdate messages to force the server to keep performing key deriva…

  Go standard library crypto/tls golang go Debian Ubuntu Azure Linux Alpine Wolfi Go
  Aug 13, 2026
• Medium 6.1
  CVE-2026-56858

  Fix Javascript regexp context tracking in html/template

  Previously, pathological inputs could close an unescaped '/' early, allowing for attack-controlled data to inject arbitrary content, potentially leading to XSS.

  Go standard library html/template katib-suggestion-hyperopt katib-suggestion-goptuna-compat Debian Ubuntu Azure Linux Alpine Wolfi Go
  Aug 13, 2026
• Medium 5.9
  CVE-2026-56860

  Avoid quadratic complexity in resolvePath in net/url

  Previously, resolving relative paths containing parent directory ('..') segments performed string conversions and buffer rewrites on each step, resulting in quadratic time complexity and high memory allocation overhead. Now, path resolution operates on a byte…

  Go standard library net/url katib-suggestion-hyperopt katib-suggestion-goptuna-compat Debian Ubuntu Azure Linux Alpine Wolfi Go
  Aug 13, 2026
• Medium 5.5
  CVE-2025-11395

  Podman: arbitrary file write when importing oci archive

  A flaw was found in Podman. If an attacker can pass a crafted tar archive to the `podman load` command, they can create files on the host machine with the privileges of the user running Podman.

  Red Hat Red Hat Enterprise Linux 9 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 10 Linux Debian Ubuntu Azure Linux Alpine
  Sep 15, 2026