CVE-2025-27553 · cross-distro fix matrix

CVE-2025-27553: Relative Path Traversal vulnerability in Apache Commons VFS before 2.10.0. The FileObject API in Commons VFS has a 'resolveFile' method that takes a 'scope' parameter. Specifying 'NameScope.DESCENDENT' promises that "an exception is thrown if the resolved file is not a descendent of the base file".

Affects 3 Linux releases across 3 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2025-27553 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

commons-vfs→ fixed in2.1-2+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y commons-vfs
```

Debian bookworm

Source: Debian Security Tracker

commons-vfs→ fixed in2.1-4+deb12u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y commons-vfs
```

Debian trixie

Source: Debian Security Tracker

commons-vfs→ fixed in2.1-5urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y commons-vfs
```

Are YOU affected by CVE-2025-27553?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

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