RHSA-2026:49944: Important: container-tools:rhel8 security, bug fix, and enhancement update

Published Aug 4, 2026
·
Updated

Important: container-tools:rhel8 security, bug fix, and enhancement update

Other sources

The container-tools module contains tools for working with containers, notably podman, buildah, skopeo, and runc.Security Fix(es): crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate (CVE-2025-61729) golang: archive/zip: Excessive CPU consumption when building archive index in archive/zip (CVE-2025-61728) golang: net/url: Memory exhaustion in query parameter parsing in net/url (CVE-2025-61726) crypto/tls: Unexpected session resumption in crypto/tls (CVE-2025-68121) net/url: Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679) github.com/go-jose/go-jose/v3: github.com/go-jose/go-jose/v4: Go JOSE: Denial of Service via crafted JSON Web Encryption (JWE) object (CVE-2026-34986) crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation (CVE-2026-32281) crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages (CVE-2026-32283) crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280) golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via crafted public key with excessive parameters (CVE-2026-39829) golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via resource leak from unsolicited SSH responses (CVE-2026-39830) golang.org/x/crypto/ssh/agent: golang.org/x/crypto/ssh/agent: Security bypass due to improper handling of key restrictions (CVE-2026-39832) golang.org/x/crypto/ssh/knownhosts: golang: golang.org/x/crypto/ssh/knownhosts: Revocation bypass via unchecked SignatureKey (CVE-2026-42508) Bug Fix(es) and Enhancement(s): [RHEL 8.8] Buildah specfile missing dumpspec test binary (JIRA:RHEL-170411) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

— Red Hat

Affected Software

147 affected componentsFixes available
Red Hat Red Hat Enterprise Linux Server - TUS
Red Hat Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle Long Life
Red Hat Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
redhat/aardvark-dns<1.5.0-2.module+el8.8.0+23884+2031fc78
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redhat/cockpit-podman<63.1-1.module+el8.8.0+23884+2031fc78
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redhat/conmon<2.1.6-1.module+el8.8.0+23884+2031fc78
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redhat/container-selinux<2.229.0-1.module+el8.8.0+23884+2031fc78
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redhat/podman<4.4.1-27.module+el8.8.0+24545+b713e821.8
4.4.1-27.module+el8.8.0+24545+b713e821.8
redhat/podman-catatonit<4.4.1-27.module+el8.8.0+24545+b713e821.8
4.4.1-27.module+el8.8.0+24545+b713e821.8
redhat/podman-catatonit-debuginfo<4.4.1-27.module+el8.8.0+24545+b713e821.8
4.4.1-27.module+el8.8.0+24545+b713e821.8
redhat/podman-debuginfo<4.4.1-27.module+el8.8.0+24545+b713e821.8
4.4.1-27.module+el8.8.0+24545+b713e821.8
redhat/podman-debugsource<4.4.1-27.module+el8.8.0+24545+b713e821.8
4.4.1-27.module+el8.8.0+24545+b713e821.8
redhat/podman-gvproxy<4.4.1-27.module+el8.8.0+24545+b713e821.8
4.4.1-27.module+el8.8.0+24545+b713e821.8
redhat/podman-gvproxy-debuginfo<4.4.1-27.module+el8.8.0+24545+b713e821.8
4.4.1-27.module+el8.8.0+24545+b713e821.8
redhat/podman-plugins<4.4.1-27.module+el8.8.0+24545+b713e821.8
4.4.1-27.module+el8.8.0+24545+b713e821.8
redhat/podman-plugins-debuginfo<4.4.1-27.module+el8.8.0+24545+b713e821.8
4.4.1-27.module+el8.8.0+24545+b713e821.8
redhat/podman-remote<4.4.1-27.module+el8.8.0+24545+b713e821.8
4.4.1-27.module+el8.8.0+24545+b713e821.8
redhat/podman-remote-debuginfo<4.4.1-27.module+el8.8.0+24545+b713e821.8
4.4.1-27.module+el8.8.0+24545+b713e821.8
redhat/podman-tests<4.4.1-27.module+el8.8.0+24545+b713e821.8
4.4.1-27.module+el8.8.0+24545+b713e821.8
redhat/python3-criu<3.15-4.module+el8.8.0+23884+2031fc78
3.15-4.module+el8.8.0+23884+2031fc78
redhat/runc<1.2.9-1.module+el8.8.0+24525+a924b82f.1
1.2.9-1.module+el8.8.0+24525+a924b82f.1
redhat/runc-debuginfo<1.2.9-1.module+el8.8.0+24525+a924b82f.1
1.2.9-1.module+el8.8.0+24525+a924b82f.1
redhat/runc-debugsource<1.2.9-1.module+el8.8.0+24525+a924b82f.1
1.2.9-1.module+el8.8.0+24525+a924b82f.1
redhat/skopeo<1.11.6-1.module+el8.8.0+24525+a924b82f
1.11.6-1.module+el8.8.0+24525+a924b82f
redhat/skopeo-tests<1.11.6-1.module+el8.8.0+24525+a924b82f
1.11.6-1.module+el8.8.0+24525+a924b82f
redhat/slirp4netns<1.2.0-3.module+el8.8.0+23884+2031fc78
1.2.0-3.module+el8.8.0+23884+2031fc78
redhat/slirp4netns-debuginfo<1.2.0-3.module+el8.8.0+23884+2031fc78
1.2.0-3.module+el8.8.0+23884+2031fc78
redhat/slirp4netns-debugsource<1.2.0-3.module+el8.8.0+23884+2031fc78
1.2.0-3.module+el8.8.0+23884+2031fc78
redhat/toolbox<0.0.99.3-7.module+el8.8.0+23884+2031fc78
0.0.99.3-7.module+el8.8.0+23884+2031fc78
redhat/toolbox-debuginfo<0.0.99.3-7.module+el8.8.0+23884+2031fc78
0.0.99.3-7.module+el8.8.0+23884+2031fc78
redhat/toolbox-debugsource<0.0.99.3-7.module+el8.8.0+23884+2031fc78
0.0.99.3-7.module+el8.8.0+23884+2031fc78
redhat/toolbox-tests<0.0.99.3-7.module+el8.8.0+23884+2031fc78
0.0.99.3-7.module+el8.8.0+23884+2031fc78

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/aardvark-dns to a version that resolves this vulnerability.

    Fixed in 1.5.0-2.module+el8.8.0+23884+2031fc78
  2. Upgrade

    Upgrade redhat/buildah to a version that resolves this vulnerability.

    Fixed in 1.29.8-1.module+el8.8.0+24545+b713e821
  3. Upgrade

    Upgrade redhat/cockpit-podman to a version that resolves this vulnerability.

    Fixed in 63.1-1.module+el8.8.0+23884+2031fc78
  4. Upgrade

    Upgrade redhat/conmon to a version that resolves this vulnerability.

    Fixed in 2.1.6-1.module+el8.8.0+23884+2031fc78
  5. Upgrade

    Upgrade redhat/container-selinux to a version that resolves this vulnerability.

    Fixed in 2.229.0-1.module+el8.8.0+23884+2031fc78
  6. Upgrade

    Upgrade redhat/containernetworking-plugins to a version that resolves this vulnerability.

    Fixed in 1.2.0-3.module+el8.8.0+24525+a924b82f.1
  7. Upgrade

    Upgrade redhat/containers-common to a version that resolves this vulnerability.

    Fixed in 1-67.module+el8.8.0+23884+2031fc78
  8. Upgrade

    Upgrade redhat/criu to a version that resolves this vulnerability.

    Fixed in 3.15-4.module+el8.8.0+23884+2031fc78
  9. Upgrade

    Upgrade redhat/crun to a version that resolves this vulnerability.

    Fixed in 1.14.3-1.module+el8.8.0+23884+2031fc78
  10. Upgrade

    Upgrade redhat/fuse-overlayfs to a version that resolves this vulnerability.

    Fixed in 1.11-1.module+el8.8.0+23884+2031fc78
  11. Upgrade

    Upgrade redhat/libslirp to a version that resolves this vulnerability.

    Fixed in 4.4.0-1.module+el8.8.0+23884+2031fc78
  12. Upgrade

    Upgrade redhat/netavark to a version that resolves this vulnerability.

    Fixed in 1.5.1-3.module+el8.8.0+23884+2031fc78
  13. Upgrade

    Upgrade redhat/oci-seccomp-bpf-hook to a version that resolves this vulnerability.

    Fixed in 1.2.10-1.module+el8.8.0+24130+2fde7a57
  14. Upgrade

    Upgrade redhat/podman to a version that resolves this vulnerability.

    Fixed in 4.4.1-27.module+el8.8.0+24545+b713e821.8
  15. Upgrade

    Upgrade redhat/python-podman to a version that resolves this vulnerability.

    Fixed in 4.4.1-1.module+el8.8.0+23884+2031fc78
  16. Upgrade

    Upgrade redhat/runc to a version that resolves this vulnerability.

    Fixed in 1.2.9-1.module+el8.8.0+24525+a924b82f.1
  17. Upgrade

    Upgrade redhat/skopeo to a version that resolves this vulnerability.

    Fixed in 1.11.6-1.module+el8.8.0+24525+a924b82f
  18. Upgrade

    Upgrade redhat/slirp4netns to a version that resolves this vulnerability.

    Fixed in 1.2.0-3.module+el8.8.0+23884+2031fc78
  19. Upgrade

    Upgrade redhat/toolbox to a version that resolves this vulnerability.

    Fixed in 0.0.99.3-7.module+el8.8.0+23884+2031fc78
  20. Upgrade

    Upgrade redhat/udica to a version that resolves this vulnerability.

    Fixed in 0.2.6-20.module+el8.8.0+23884+2031fc78
  21. Upgrade

    Upgrade redhat/buildah-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.29.8-1.module+el8.8.0+24545+b713e821
  22. Upgrade

    Upgrade redhat/buildah-debugsource to a version that resolves this vulnerability.

    Fixed in 1.29.8-1.module+el8.8.0+24545+b713e821
  23. Upgrade

    Upgrade redhat/buildah-tests to a version that resolves this vulnerability.

    Fixed in 1.29.8-1.module+el8.8.0+24545+b713e821
  24. Upgrade

    Upgrade redhat/buildah-tests-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.29.8-1.module+el8.8.0+24545+b713e821
  25. Upgrade

    Upgrade redhat/conmon-debuginfo to a version that resolves this vulnerability.

    Fixed in 2.1.6-1.module+el8.8.0+23884+2031fc78
  26. Upgrade

    Upgrade redhat/conmon-debugsource to a version that resolves this vulnerability.

    Fixed in 2.1.6-1.module+el8.8.0+23884+2031fc78
  27. Upgrade

    Upgrade redhat/containernetworking-plugins-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.2.0-3.module+el8.8.0+24525+a924b82f.1
  28. Upgrade

    Upgrade redhat/containernetworking-plugins-debugsource to a version that resolves this vulnerability.

    Fixed in 1.2.0-3.module+el8.8.0+24525+a924b82f.1
  29. Upgrade

    Upgrade redhat/crit to a version that resolves this vulnerability.

    Fixed in 3.15-4.module+el8.8.0+23884+2031fc78
  30. Upgrade

    Upgrade redhat/criu-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.15-4.module+el8.8.0+23884+2031fc78
  31. Upgrade

    Upgrade redhat/criu-debugsource to a version that resolves this vulnerability.

    Fixed in 3.15-4.module+el8.8.0+23884+2031fc78
  32. Upgrade

    Upgrade redhat/criu-devel to a version that resolves this vulnerability.

    Fixed in 3.15-4.module+el8.8.0+23884+2031fc78
  33. Upgrade

    Upgrade redhat/criu-libs to a version that resolves this vulnerability.

    Fixed in 3.15-4.module+el8.8.0+23884+2031fc78
  34. Upgrade

    Upgrade redhat/criu-libs-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.15-4.module+el8.8.0+23884+2031fc78
  35. Upgrade

    Upgrade redhat/crun-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.14.3-1.module+el8.8.0+23884+2031fc78
  36. Upgrade

    Upgrade redhat/crun-debugsource to a version that resolves this vulnerability.

    Fixed in 1.14.3-1.module+el8.8.0+23884+2031fc78
  37. Upgrade

    Upgrade redhat/fuse-overlayfs-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.11-1.module+el8.8.0+23884+2031fc78
  38. Upgrade

    Upgrade redhat/fuse-overlayfs-debugsource to a version that resolves this vulnerability.

    Fixed in 1.11-1.module+el8.8.0+23884+2031fc78
  39. Upgrade

    Upgrade redhat/libslirp-debuginfo to a version that resolves this vulnerability.

    Fixed in 4.4.0-1.module+el8.8.0+23884+2031fc78
  40. Upgrade

    Upgrade redhat/libslirp-debugsource to a version that resolves this vulnerability.

    Fixed in 4.4.0-1.module+el8.8.0+23884+2031fc78
  41. Upgrade

    Upgrade redhat/libslirp-devel to a version that resolves this vulnerability.

    Fixed in 4.4.0-1.module+el8.8.0+23884+2031fc78
  42. Upgrade

    Upgrade redhat/oci-seccomp-bpf-hook-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.2.10-1.module+el8.8.0+24130+2fde7a57
  43. Upgrade

    Upgrade redhat/oci-seccomp-bpf-hook-debugsource to a version that resolves this vulnerability.

    Fixed in 1.2.10-1.module+el8.8.0+24130+2fde7a57
  44. Upgrade

    Upgrade redhat/podman-catatonit to a version that resolves this vulnerability.

    Fixed in 4.4.1-27.module+el8.8.0+24545+b713e821.8
  45. Upgrade

    Upgrade redhat/podman-catatonit-debuginfo to a version that resolves this vulnerability.

    Fixed in 4.4.1-27.module+el8.8.0+24545+b713e821.8
  46. Upgrade

    Upgrade redhat/podman-debuginfo to a version that resolves this vulnerability.

    Fixed in 4.4.1-27.module+el8.8.0+24545+b713e821.8
  47. Upgrade

    Upgrade redhat/podman-debugsource to a version that resolves this vulnerability.

    Fixed in 4.4.1-27.module+el8.8.0+24545+b713e821.8
  48. Upgrade

    Upgrade redhat/podman-docker to a version that resolves this vulnerability.

    Fixed in 4.4.1-27.module+el8.8.0+24545+b713e821.8
  49. Upgrade

    Upgrade redhat/podman-gvproxy to a version that resolves this vulnerability.

    Fixed in 4.4.1-27.module+el8.8.0+24545+b713e821.8
  50. Upgrade

    Upgrade redhat/podman-gvproxy-debuginfo to a version that resolves this vulnerability.

    Fixed in 4.4.1-27.module+el8.8.0+24545+b713e821.8
  51. Upgrade

    Upgrade redhat/podman-plugins to a version that resolves this vulnerability.

    Fixed in 4.4.1-27.module+el8.8.0+24545+b713e821.8
  52. Upgrade

    Upgrade redhat/podman-plugins-debuginfo to a version that resolves this vulnerability.

    Fixed in 4.4.1-27.module+el8.8.0+24545+b713e821.8
  53. Upgrade

    Upgrade redhat/podman-remote to a version that resolves this vulnerability.

    Fixed in 4.4.1-27.module+el8.8.0+24545+b713e821.8
  54. Upgrade

    Upgrade redhat/podman-remote-debuginfo to a version that resolves this vulnerability.

    Fixed in 4.4.1-27.module+el8.8.0+24545+b713e821.8
  55. Upgrade

    Upgrade redhat/podman-tests to a version that resolves this vulnerability.

    Fixed in 4.4.1-27.module+el8.8.0+24545+b713e821.8
  56. Upgrade

    Upgrade redhat/python3-criu to a version that resolves this vulnerability.

    Fixed in 3.15-4.module+el8.8.0+23884+2031fc78
  57. Upgrade

    Upgrade redhat/python3-podman to a version that resolves this vulnerability.

    Fixed in 4.4.1-1.module+el8.8.0+23884+2031fc78
  58. Upgrade

    Upgrade redhat/runc-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.2.9-1.module+el8.8.0+24525+a924b82f.1
  59. Upgrade

    Upgrade redhat/runc-debugsource to a version that resolves this vulnerability.

    Fixed in 1.2.9-1.module+el8.8.0+24525+a924b82f.1
  60. Upgrade

    Upgrade redhat/skopeo-tests to a version that resolves this vulnerability.

    Fixed in 1.11.6-1.module+el8.8.0+24525+a924b82f
  61. Upgrade

    Upgrade redhat/slirp4netns-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.2.0-3.module+el8.8.0+23884+2031fc78
  62. Upgrade

    Upgrade redhat/slirp4netns-debugsource to a version that resolves this vulnerability.

    Fixed in 1.2.0-3.module+el8.8.0+23884+2031fc78
  63. Upgrade

    Upgrade redhat/toolbox-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.0.99.3-7.module+el8.8.0+23884+2031fc78
  64. Upgrade

    Upgrade redhat/toolbox-debugsource to a version that resolves this vulnerability.

    Fixed in 0.0.99.3-7.module+el8.8.0+23884+2031fc78
  65. Upgrade

    Upgrade redhat/toolbox-tests to a version that resolves this vulnerability.

    Fixed in 0.0.99.3-7.module+el8.8.0+23884+2031fc78

Event History

Aug 4, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·09:30 AM
Data Sourced
via Red Hat·09:30 AM
Severity
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Frequently Asked Questions

1

What is the severity of RHSA-2026:49944?

The severity of RHSA-2026:49944 is high with a score of 7.

2

What components are affected by RHSA-2026:49944?

Affected components include redhat/aardvark-dns, redhat/buildah, redhat/conmon, redhat/containernetworking-plugins, redhat/containers-common, redhat/criu, redhat/crun, and redhat/fuse-overlayfs.

3

How do I fix RHSA-2026:49944?

To fix RHSA-2026:49944, update the relevant container-tools packages through your package manager.

4

What is the main security issue addressed by RHSA-2026:49944?

The main security issue addressed by RHSA-2026:49944 is a Denial of Service vulnerability due to excessive resource consumption via crafted certificates.

5

When was RHSA-2026:49944 published?

RHSA-2026:49944 was published on August 4, 2026.

Company

Resources

Contact

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