CVE-2026-87766
Fixed in a distro release EPSS <1%CVSS 8.8
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.
Products: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On, Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On, Red Hat Enterprise Linux 8.8 Telecommunications Update Service, Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.6 Extended Update Support, Red Hat Hardened Images
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 10 | bubblewrap | 0.10.0-5.el10_2 |
| AlmaLinux 8 | bubblewrap | 0.4.0-3.el8_10 |
| AlmaLinux 9 | bubblewrap | 0.6.3-1.el9_8.1 |
| Debian 12 | bubblewrap | no fix |
| Debian 13 | bubblewrap | 0.12.0-1~deb13u1 |
| Debian 14 | bubblewrap | 0.12.0-1 |
| Red Hat Enterprise Linux 10.2 | bubblewrap | 0:0.10.0-5.el10_2 |
| Red Hat Enterprise Linux 10.2 | bubblewrap-debuginfo | 0:0.10.0-5.el10_2 |
| Red Hat Enterprise Linux 10.2 | bubblewrap-debugsource | 0:0.10.0-5.el10_2 |
| Red Hat Enterprise Linux 8 | bubblewrap | 0:0.4.0-3.el8_10 |
| Red Hat Enterprise Linux 8 | bubblewrap-debuginfo | 0:0.4.0-3.el8_10 |
| Red Hat Enterprise Linux 8 | bubblewrap-debugsource | 0:0.4.0-3.el8_10 |
| Red Hat Enterprise Linux 9 | bubblewrap | 0:0.6.3-1.el9_8.1 |
| Red Hat Enterprise Linux 9 | bubblewrap-debuginfo | 0:0.6.3-1.el9_8.1 |
| Red Hat Enterprise Linux 9 | bubblewrap-debugsource | 0:0.6.3-1.el9_8.1 |
| Red Hat Enterprise Linux eus 10.0 | bubblewrap | 0:0.10.0-3.el10_0.4 |
| Red Hat Enterprise Linux eus 10.0 | bubblewrap-debuginfo | 0:0.10.0-3.el10_0.4 |
| Red Hat Enterprise Linux eus 10.0 | bubblewrap-debugsource | 0:0.10.0-3.el10_0.4 |
| Red Hat rhel aus 8.4 | bubblewrap | 0:0.4.0-3.el8_4 |
| Red Hat rhel aus 8.4 | bubblewrap-debuginfo | 0:0.4.0-3.el8_4 |
| Red Hat rhel aus 8.4 | bubblewrap-debugsource | 0:0.4.0-3.el8_4 |
| Red Hat rhel aus 8.6 | bubblewrap | 0:0.4.0-3.el8_6 |
| Red Hat rhel aus 8.6 | bubblewrap-debuginfo | 0:0.4.0-3.el8_6 |
| Red Hat rhel aus 8.6 | bubblewrap-debugsource | 0:0.4.0-3.el8_6 |
| Red Hat rhel e4s 8.8 | bubblewrap | 0:0.4.0-3.el8_8 |
| Red Hat rhel e4s 8.8 | bubblewrap-debuginfo | 0:0.4.0-3.el8_8 |
| Red Hat rhel e4s 8.8 | bubblewrap-debugsource | 0:0.4.0-3.el8_8 |
| Red Hat rhel e4s 9.2 | bubblewrap | 0:0.4.1-7.el9_2.1 |
| Red Hat rhel e4s 9.2 | bubblewrap-debuginfo | 0:0.4.1-7.el9_2.1 |
| Red Hat rhel e4s 9.2 | bubblewrap-debugsource | 0:0.4.1-7.el9_2.1 |
| Red Hat rhel e4s 9.4 | bubblewrap | 0:0.4.1-7.el9_4.1 |
| Red Hat rhel e4s 9.4 | bubblewrap-debuginfo | 0:0.4.1-7.el9_4.1 |
| Red Hat rhel e4s 9.4 | bubblewrap-debugsource | 0:0.4.1-7.el9_4.1 |
| Red Hat rhel eus 9.6 | bubblewrap | 0:0.4.1-8.el9_6.1 |
| Red Hat rhel eus 9.6 | bubblewrap-debuginfo | 0:0.4.1-8.el9_6.1 |
| Red Hat rhel eus 9.6 | bubblewrap-debugsource | 0:0.4.1-8.el9_6.1 |
| Red Hat rhel eus long life 8.4 | bubblewrap | 0:0.4.0-3.el8_4 |
| Red Hat rhel eus long life 8.4 | bubblewrap-debuginfo | 0:0.4.0-3.el8_4 |
| Red Hat rhel eus long life 8.4 | bubblewrap-debugsource | 0:0.4.0-3.el8_4 |
| Red Hat rhel eus long life 8.6 | bubblewrap | 0:0.4.0-3.el8_6 |
| Red Hat rhel eus long life 8.6 | bubblewrap-debuginfo | 0:0.4.0-3.el8_6 |
| Red Hat rhel eus long life 8.6 | bubblewrap-debugsource | 0:0.4.0-3.el8_6 |
| Red Hat rhel tus 8.8 | bubblewrap | 0:0.4.0-3.el8_8 |
| Red Hat rhel tus 8.8 | bubblewrap-debuginfo | 0:0.4.0-3.el8_8 |
| Red Hat rhel tus 8.8 | bubblewrap-debugsource | 0:0.4.0-3.el8_8 |
| Rocky Linux 10 | bubblewrap | 0:0.10.0-5.el10_2 |
| Rocky Linux 8 | bubblewrap | 0:0.4.0-3.el8_10 |
| Rocky Linux 9 | bubblewrap | 0:0.6.3-1.el9_8.1 |
| Ubuntu 22.04 LTS | bubblewrap | 0.6.1-1ubuntu0.2 |
| Ubuntu 22.04 LTS | bubblewrap | no fix |
| Ubuntu 24.04 LTS | bubblewrap | 0.9.0-1ubuntu0.2 |
| Ubuntu 24.04 LTS | bubblewrap | no fix |
| Ubuntu 26.04 LTS | bubblewrap | 0.11.1-1ubuntu0.2 |
| Ubuntu 26.04 LTS | bubblewrap | no fix |
| Ubuntu Pro 18.04 LTS | bubblewrap | no fix |
| Ubuntu Pro 18.04 LTS | bubblewrap | 0.2.1-1ubuntu0.1+esm2 |
| Ubuntu Pro 20.04 LTS | bubblewrap | 0.4.0-1ubuntu4.1+esm2 |
| Ubuntu Pro 20.04 LTS | bubblewrap | no fix |
| openSUSE Tumbleweed | flatpak | 1.18.3-1.1 |