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Early warnings
SZB-fe5d2dd919

BastilleBSD Bastille flaw reportedly lets jailed users escape isolation (EUVD-2026-114109)

Status
Unverified: only social posts report this so far
Kind
Vulnerability
Vendor
BastilleBSD
Product
Bastille
First seen

Summary

The EUVD database lists EUVD-2026-114109, a symlink-following flaw in Bastille through 1.4.4 affecting the cp.sh, rcp.sh and jcp.sh subcommands. According to the listing, which scores it 5.3/10 (CVSS v3.1), attackers inside a jail can plant symlinks pointing to host paths or other jail roots.

If you use BastilleBSD

Upgrade Bastille to a release newer than 1.4.4 once the vendor publishes a fix

Restrict which users can run jail management commands until patched

Audit jails for symlinks that point to host paths or other jail roots

Check the EUVD entry for updated status and remediation details

What the sources say 1

· Mastodon: “Bastille through 1.4.4 contains a symlink following vulnerability in the cp.sh, rcp.sh and jcp.sh subcommands that allows jailed users to escape jail isolation.” Source