CVE-2026-79705

medium

Description

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

https://bugzilla.redhat.com/show_bug.cgi?id=2523419

https://access.redhat.com/security/cve/CVE-2026-79705

Details

Source: Mitre, NVD

Published: 2026-09-15

Updated: 2026-09-16

Risk Information

CVSS v2

Base Score: 6.1

Vector: CVSS2#AV:N/AC:L/Au:M/C:N/I:C/A:N

Severity: Medium

CVSS v3

Base Score: 4.5

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

Severity: Medium

EPSS

EPSS: 0.00246