CVE-2025-41240
📋 TL;DR
This critical vulnerability allows unauthenticated remote attackers to access Kubernetes secrets via predictable web paths in Bitnami Helm charts. Any deployment using affected charts with default configurations that expose the application externally is vulnerable. Attackers can retrieve sensitive credentials like database passwords and API keys without authentication.
💻 Affected Systems
- Bitnami Helm charts for various applications (specific charts listed in advisory)
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of all secrets stored in mounted Kubernetes secrets, leading to full system takeover, data exfiltration, and lateral movement within the environment.
Likely Case
Credential theft allowing attackers to access databases, APIs, and other services that use the exposed secrets, potentially leading to data breaches and unauthorized access.
If Mitigated
Limited impact if proper network segmentation and access controls prevent external access to vulnerable applications.
🎯 Exploit Status
Exploitation requires only HTTP/S access to the vulnerable application and knowledge of the predictable path structure (/opt/bitnami/*/secrets).
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Varies by specific chart - check Bitnami advisory for each affected chart
Vendor Advisory: https://github.com/bitnami/charts/security/advisories/GHSA-wgg9-9qgw-529w
Restart Required: Yes
Instructions:
1. Update affected Bitnami Helm charts to patched versions. 2. Update deployments using helm upgrade. 3. Restart affected pods to apply changes. 4. Verify secrets are no longer accessible via web paths.
🔧 Temporary Workarounds
Disable password file mounting
allSet usePasswordFiles=false in Helm values to prevent secrets from being mounted as files in the container.
helm upgrade <release> <chart> --set usePasswordFiles=false
Network isolation
allRestrict network access to vulnerable applications using Kubernetes NetworkPolicies or firewall rules.
kubectl apply -f network-policy.yaml
🧯 If You Can't Patch
- Immediately restrict network access to vulnerable applications using firewalls or Kubernetes NetworkPolicies
- Rotate all exposed secrets and credentials that could have been compromised
🔍 How to Verify
Check if Vulnerable:
Check if your deployment uses affected Bitnami Helm charts with default configurations and test if secrets are accessible via HTTP/S at /opt/bitnami/*/secrets paths.Check Version:
helm list --all-namespaces | grep bitnamiVerify Fix Applied:
After patching, attempt to access the secret paths via HTTP/S to confirm they return 404 or access denied errors.📡 Detection & Monitoring
Log Indicators:
- HTTP requests to paths containing /opt/bitnami/*/secrets
- Unusual access patterns to secret-related endpoints
Network Indicators:
- External IPs accessing predictable secret paths
- High volume of requests to sensitive endpoints
SIEM Query:
http.url:"/opt/bitnami/*/secrets" OR http.uri:"/opt/bitnami/*/secrets"