diff --git a/implants/lib/eldritch/Cargo.toml b/implants/lib/eldritch/Cargo.toml
index 8c9ed5d09..75c198a8c 100644
--- a/implants/lib/eldritch/Cargo.toml
+++ b/implants/lib/eldritch/Cargo.toml
@@ -93,6 +93,7 @@ listeners = { workspace = true }
 transport = { workspace = true, features = ["mock"] }
 httptest = { workspace = true }
 uuid = { workspace = true, features = ["v4"] }
+lazy_static = "1.5.0"
 
 # BUILD
 [build-dependencies]
diff --git a/implants/lib/eldritch/src/sys/exec_impl.rs b/implants/lib/eldritch/src/sys/exec_impl.rs
index ec65a012b..0cd45c943 100644
--- a/implants/lib/eldritch/src/sys/exec_impl.rs
+++ b/implants/lib/eldritch/src/sys/exec_impl.rs
@@ -121,9 +121,16 @@ fn handle_exec(
 mod tests {
     use std::{fs, path::Path, process, thread, time};
 
+    use lazy_static::lazy_static;
+    use std::sync::Mutex;
     use sysinfo::{PidExt, ProcessExt, System, SystemExt};
     use tempfile::NamedTempFile;
 
+    lazy_static! {
+        // Mutex to serialize tests that check for zombie processes to prevent interference
+        static ref ZOMBIE_TEST_MUTEX: Mutex<()> = Mutex::new(());
+    }
+
     fn init_logging() {
         let _ = pretty_env_logger::formatted_timed_builder()
             .filter_level(log::LevelFilter::Info)
@@ -239,6 +246,9 @@ mod tests {
 
     #[test]
     fn test_sys_exec_disown_linux() -> anyhow::Result<()> {
+        // Acquire mutex to ensure exclusive access to process table/zombie checks
+        let _guard = ZOMBIE_TEST_MUTEX.lock().unwrap();
+
         if cfg!(target_os = "linux")
             || cfg!(target_os = "ios")
             || cfg!(target_os = "macos")
@@ -269,6 +279,9 @@ mod tests {
 
     #[test]
     fn test_sys_exec_disown_no_defunct() -> anyhow::Result<()> {
+        // Acquire mutex to ensure exclusive access to process table/zombie checks
+        let _guard = ZOMBIE_TEST_MUTEX.lock().unwrap();
+
         init_logging();
 
         if cfg!(target_os = "linux")
diff --git a/test_output.log b/test_output.log
new file mode 100644
index 000000000..0bd1eb785
--- /dev/null
+++ b/test_output.log
@@ -0,0 +1,8 @@
+npm error code ENOENT
+npm error syscall open
+npm error path /app/package.json
+npm error errno -2
+npm error enoent Could not read package.json: Error: ENOENT: no such file or directory, open '/app/package.json'
+npm error enoent This is related to npm not being able to find a file.
+npm error enoent
+npm error A complete log of this run can be found in: /home/jules/.npm/_logs/2026-01-06T08_28_56_438Z-debug-0.log