Vulnerability-Lookup

FKIE_CVE-2026-79705

Vulnerability from fkie_nvd - Published: 2026-09-15 17:17 - Updated: 2026-09-15 18:19

Severity

4.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N

Summary

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.

References

	URL	Tags
	secalert@redhat.com	https://access.redhat.com/security/cve/CVE-2026-79705
	secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=2523419

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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          "confidentialityImpact": "NONE",
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}

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

Vulnerability from cvelistv5 – Published: 2026-09-15 16:23 – Updated: 2026-09-15 17:58

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

References

2 references

URL	Tags
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

9 products

Vendor	Product	Version
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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          "vendor": "Red Hat"
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          "vendor": "Red Hat"
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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.

Detection rules are retrieved from Rulezet.

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.