Vulnerability-Lookup

RHSA-2026:74861

Vulnerability from csaf_redhat - Published: 2026-10-02 09:14 - Updated: 2026-10-02 14:00

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Severity

Important

Notes

Topic: An update for Red Hat Hardened Images RPMs is now available.

Details: This update includes the following RPMs: podman: * podman-6.1.3-1.hum1 (aarch64, x86_64) * podman-docker-6.1.3-1.hum1 (noarch) * podman-machine-6.1.3-1.hum1 (aarch64, x86_64) * podman-remote-6.1.3-1.hum1 (aarch64, x86_64) * podmansh-6.1.3-1.hum1 (aarch64, x86_64) * podman-6.1.3-1.hum1.src (src) Security Fix(es): podman: * CVE-2026-94603

Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2026-79705

A flaw was found in the buildah/copier Go package. When used outside of Buildah by a non-root caller, a crafted tar archive containing malicious symlinks can escape the target extraction directory and create files outside the intended destination. Buildah itself uses chroot hardening and is not affected.

4.5 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected products

Fixed 11 products

Product	Version	Remediation
Unresolved product id: Red Hat Hardened Images:podman-0:6.1.3-1.hum1@aarch64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:podman-0:6.1.3-1.hum1@src	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:podman-0:6.1.3-1.hum1@x86_64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:podman-docker-0:6.1.3-1.hum1@noarch@public-hummingbird-aarch64-rpms	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:podman-docker-0:6.1.3-1.hum1@noarch@public-hummingbird-x86_64-rpms	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:podman-machine-0:6.1.3-1.hum1@aarch64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:podman-machine-0:6.1.3-1.hum1@x86_64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:podman-remote-0:6.1.3-1.hum1@aarch64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:podman-remote-0:6.1.3-1.hum1@x86_64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:podmansh-0:6.1.3-1.hum1@aarch64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:podmansh-0:6.1.3-1.hum1@x86_64	—	Vendor Fix fix Workaround

Threats

Impact Moderate

CVE-2026-94603

A flaw was found in Podman. When a container image with checkpoint annotations is executed using the podman run command, Podman treats the image as a restored checkpoint and ignores user-specified sandboxing options, such as dropped privileges. An attacker can exploit this issue by enticing a user to run a specially crafted image, leading to a container sandbox bypass and potential execution with elevated system privileges.

8.6 (High)


                
                  CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CWE-15 - External Control of System or Configuration Setting

Affected products

Fixed 11 products, the same list as for CVE-2026-79705

Threats

Impact Important

References

14 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:74861	self
https://access.redhat.com/security/cve/CVE-2026-94603	external
https://access.redhat.com/security/updates/classi…	external
https://images.redhat.com/	external
https://access.redhat.com/security/cve/CVE-2026-79705	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2026-79705	self
https://bugzilla.redhat.com/show_bug.cgi?id=2523419	external
https://www.cve.org/CVERecord?id=CVE-2026-79705	external
https://nvd.nist.gov/vuln/detail/CVE-2026-79705	external
https://access.redhat.com/security/cve/CVE-2026-94603	self
https://bugzilla.redhat.com/show_bug.cgi?id=2542566	external
https://www.cve.org/CVERecord?id=CVE-2026-94603	external
https://nvd.nist.gov/vuln/detail/CVE-2026-94603	external

Acknowledgments

Oleh Konko Junyi Liu Ibrahim Saglam Ron Masas

JSON

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  "vulnerabilities": [
    {
      "acknowledgments": [
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          "names": [
            "Oleh Konko",
            "Junyi Liu",
            "Ibrahim Saglam",
            "Ron Masas"
          ]
        }
      ],
      "cve": "CVE-2026-79705",
      "cwe": {
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        "name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
      },
      "discovery_date": "2026-08-25T12:46:00.664000+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2523419"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the buildah/copier Go package. When used outside of Buildah by a non-root caller, a crafted tar archive containing malicious symlinks can escape the target extraction directory and create files outside the intended destination. Buildah itself uses chroot hardening and is not affected.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "podman: buildah: buildah/copier: Directory escape via crafted tar symlinks when used outside Buildah by non-root callers",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This flaw allows a directory escape via crafted tar symlinks when a macOS Podman remote client performs `podman cp` against a malicious Podman system service server. Exploitation requires interaction with a malicious server and is not applicable to typical container deployments on Red Hat Enterprise Linux.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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            "Red Hat Hardened Images:podman-docker-0:6.1.3-1.hum1@noarch@public-hummingbird-aarch64-rpms",
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            "Red Hat Hardened Images:podman-machine-0:6.1.3-1.hum1@aarch64",
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            "Red Hat Hardened Images:podman-remote-0:6.1.3-1.hum1@aarch64",
            "Red Hat Hardened Images:podman-remote-0:6.1.3-1.hum1@x86_64",
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          "details": "Moderate"
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      "title": "podman: buildah: buildah/copier: Directory escape via crafted tar symlinks when used outside Buildah by non-root callers"
    },
    {
      "cve": "CVE-2026-94603",
      "cwe": {
        "id": "CWE-15",
        "name": "External Control of System or Configuration Setting"
      },
      "discovery_date": "2026-09-28T15:59:21.039000+00:00",
      "ids": [
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          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "podman: podman: The `podman run` command can be instructed to disable almost all sandboxing - including user-requested sandboxing - by image annotation",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This vulnerability is rated as having an Important severity impact for Red Hat environments because running a malicious image can completely circumvent expected confinement boundaries and grant unexpected privileges to a container, compromising host integrity. Under default configurations, container execution relies on enforced sandboxing limits and security flags supplied by the operator. However, if an image embeds specific checkpoint metadata, the runtime automatically prioritizes the checkpoint configuration over explicit command-line restrictions, silently omitting requested security controls. Exploitation requires an operator or automated workflow to launch an untrusted image; environments that execute only vetted container workloads from trusted registries remain at reduced operational risk.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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            "Red Hat Hardened Images:podman-docker-0:6.1.3-1.hum1@noarch@public-hummingbird-aarch64-rpms",
            "Red Hat Hardened Images:podman-docker-0:6.1.3-1.hum1@noarch@public-hummingbird-x86_64-rpms",
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            "Red Hat Hardened Images:podman-remote-0:6.1.3-1.hum1@aarch64",
            "Red Hat Hardened Images:podman-remote-0:6.1.3-1.hum1@x86_64",
            "Red Hat Hardened Images:podmansh-0:6.1.3-1.hum1@aarch64",
            "Red Hat Hardened Images:podmansh-0:6.1.3-1.hum1@x86_64"
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      "threats": [
        {
          "category": "impact",
          "details": "Important"
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      ],
      "title": "podman: podman: The `podman run` command can be instructed to disable almost all sandboxing - including user-requested sandboxing - by image annotation"
    }
  ]
}

CVE-2026-79705 (GCVE-0-2026-79705)

Vulnerability from cvelistv5 – Published: 2026-09-15 16:23 – Updated: 2026-10-02 14:00

Title

Podman: buildah: buildah/copier: directory escape via crafted tar symlinks when used outside buildah by non-root callers

Summary

Severity

4.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-15 17:28 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

redhat redhat root Scorecard

References

3 references

URL	Tags
https://access.redhat.com/errata/RHSA-2026:74861	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-79705	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2523419	issue-trackingx_refsource_REDHAT

Impacted products

10 products

Vendor	Product	Version
Red Hat	Red Hat Hardened Images	Unaffected: 6.1.3-1.hum1 , < * (rpm) cpe:/a:redhat:hummingbird:1
Red Hat	Red Hat Ansible Automation Platform 2	cpe:/a:redhat:ansible_automation_platform:2
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Hardened Images	cpe:/a:redhat:hummingbird:1
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4
Red Hat	Red Hat OpenShift Dev Spaces	cpe:/a:redhat:openshift_devspaces:3
Red Hat	Red Hat OpenShift Virtualization 4	cpe:/a:redhat:container_native_virtualization:4
Red Hat	Red Hat Quay 3	cpe:/a:redhat:quay:3

Date Public

2026-09-15 00:00

Credits

Red Hat would like to thank Ibrahim Saglam, Junyi Liu, Oleh Konko, and Ron Masas for reporting this issue.

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

RHSA-2026:74861

CVE-2026-79705 (GCVE-0-2026-79705)

Tags

Sightings

Nomenclature

Related by attack behaviour