CVE-2026-28406kaniko is a tool to build container images from a Dockerfile, inside a container or Kubernetes cluster.
Updated under an hour ago ()
Does this affect you?
It affects chainguard kaniko. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
kaniko is a tool to build container images from a Dockerfile, inside a container or Kubernetes cluster. Starting in version 1.25.4 and prior to version 1.25.10, kaniko unpacks build context archives using `filepath.Join(dest, cleanedName)` without enforcing that the final path stays within `dest`. A tar entry like `../outside.txt` escapes the extraction root and writes files outside the destination directory. In environments with registry authentication, this can be chained with docker credential helpers to achieve code execution within the executor process. Version 1.25.10 uses securejoin for path resolution in tar extraction.
- CVSS
- 8.2 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
- Weakness (CWE)
- CWE-22
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Jul 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
chainguard kaniko chainguard:kaniko | from 1.25.4 before 1.25.10 | NVD |
References
- https://github.com/chainguard-forks/kaniko/commit/a370e4b1f66e6e842b685c8f70ed507964c4b221patch
- https://github.com/chainguard-forks/kaniko/pull/326issue-tracking, patch
- https://github.com/chainguard-forks/kaniko/security/advisories/GHSA-6rxq-q92g-4rmfpatch, vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-28406
- https://bugzilla.redhat.com/show_bug.cgi?id=2443462
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-28406.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.