Bubblewrap: bubblewrap: symlink traversal via /oldroot allows writing files outside sandbox during setup
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 8.8epss 0.1%
probabilidade de exploração
0.1%top 96% das CVEs
exploração observada
nãonenhuma fonte reporta
A flaw was found in bubblewrap. During sandbox setup, creating files or directories under the new root can follow a parent symlink onto the host via /oldroot, writing attacker-chosen paths outside the sandbox as the launching user. This happens before the sandboxed process starts. This issue is GHSA-pxhw-h44j-8pfx. It is fixed in bubblewrap 0.12.0.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Produtos afetados
Red Hat · Red Hat Enterprise Linux 10Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat Hardened ImagesReferências
https://access.redhat.com/security/cve/CVE-2026-87766https://bugs.debian.org/1145655https://bugzilla.redhat.com/show_bug.cgi?id=2530542https://github.com/containers/bubblewrap/releases/tag/v0.12.0https://github.com/containers/bubblewrap/security/advisories/GHSA-pxhw-h44j-8pfxhttps://www.openwall.com/lists/oss-security/2026/08/27/7http://www.openwall.com/lists/oss-security/2026/09/09/3