Low [CVE-2026-87051] resolveAndValidatePath performs lexical containment only — symlinks can escape the build context
This low-severity Red Hat Linux advisory covers CVE-2026-87051.
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Summary
A flaw was found in operator-foundry. The path-containment check, designed to restrict file access within a build context, only performs string-based validation.
It fails to resolve symbolic links (symlinks), allowing an attacker to create a symlink within the build context that points to files or directories outside of it. This could enable unauthorized access to files beyond the intended confinement.
Exploitation requires the ability to introduce a symlink into the build context. Red Hat severity: Low — CVSS 2.6 (CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N).
Weakness: CWE-59.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Mitigation checklist
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
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