Re: bubblewrap 0.12.0 fixes writes outside sandbox
Red Hat Product Security allocated CVE-2026-87766 for a bubblewrap flaw fixed in 0.12.0 that allowed writes outside the sandbox.
CVE-2026-87766 has been allocated by Red Hat Product Security for the bubblewrap sandboxing tool vulnerability that permitted writes outside the sandbox. The fix shipped in bubblewrap 0.12.0, and the oss-security advisory was updated with the new CVE identifier. The short follow-up post provides no exploitation details.