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Up to 95% of your container vulnerabilities don't matter.

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temporalio/auto-setup:latest
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101 CVEs·17 reachable·83% noise

Same OS. Different stack.
Different vulnerability profile.

Two images built on debian:bookworm with identical base packages. What you add on top changes which CVEs are actually reachable.

Python + Flaskdebian:bookworm
18reachable out of 1,061|6 OS·12 app
98% noise
Reachable pathClick to see Dockerfile
APPgunicorn
calls
PIPflask3.0.0CVE-2026-272054.4
calls
PIPrequests2.31.0CVE-2024-351955.6
loads
EXT_ssl.cpython-311.so
links to
LIBlibssl33.0.11
owned by
OSlibc62.36CVE-2026-08618.4
Python + Flaskdebian:bookworm
18reachable out of 1,061|6 OS·12 app
98% noise
Click to see reachability
# shared base image
1FROM debian:bookworm
3RUN apt-get update && apt-get install -y \
# python runtime + tooling
4+ python3 python3-pip python3-venv \
5 libpq5 ca-certificates curl
7WORKDIR /app
8+COPY requirements.txt .
# installs flask, requests, gunicorn...
9+RUN pip install -r requirements.txt
10+COPY app.py .
# app entrypoint
12+CMD ["gunicorn", "-b", "0.0.0.0:8080", "app:app"]
+Lines unique to this runtime
Node + Expressdebian:bookworm
12reachable out of 1,191|2 OS·10 app
99% noise
Reachable pathClick to see Dockerfile
APPserver.js
imports
NPMjsonwebtoken9.0.0
depends on
NPMsemver7.3.5CVE-2022-258837.5
no path
LIBlibssl33.0.11
no path
OSlibc62.36CVE-2026-0861safe
Node + Expressdebian:bookworm
12reachable out of 1,191|2 OS·10 app
99% noise
Click to see reachability
# shared base image
1FROM debian:bookworm
3RUN apt-get update && apt-get install -y \
# node runtime + npm
4+ nodejs npm \
5 libpq5 ca-certificates curl
7WORKDIR /app
8+COPY package.json .
# installs express, pg, jsonwebtoken...
9+RUN npm install --production
10+COPY server.js .
# app entrypoint
12+CMD ["node", "server.js"]
+Lines unique to this runtime

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Image
Reported → Reachable
Reduction

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Reachability maps which code paths are live. That graph is what tells Emphere exactly what to patch in the Dockerfile, from our secure supply chain, built from source.

Application

Your code & dependencies

Yours
Debian
Debian
libc6 2.41-12CVE-2026-0861+12
Vulnerable
OpenSSL
3.5.5-1~deb13u1CVE-2026-31790+6
Vulnerable
Python
Python
3.11.0CVE-2026-18012+2
Vulnerable
NGINX
NGINX
1.24.0CVE-2025-43562+1
Vulnerable