Skip to main content
Compliance · Critical severity

Lambda Using Deprecated Runtime

The runtime no longer receives security patches, and AWS will eventually block updates to the function and then its invocations.

Sign inExplore the playground

Free to start. No card. The playground just needs your work email.

AWSprovider
Criticalseverity
Compliancewhere it shows up
Manualfix, steps written out

AWS

Found, explained, handed over.

Where the estate departs from your policies, frameworks and tagging rules.

01

Detect

ZopNight checks this automatically across AWS, with read-only access to the account.

02

Explain

Every finding says exactly what to change: Upgrade Lambda runtime.

03

Fix

The finding opens with the fix already written out, step by step, so it is one ticket, not an investigation.

Applies to
Lambda Functions on AWS
The fix, by hand
  1. Lambda → Functions → the resource → Code/Runtime. Note the deprecated runtime (e.g. nodejs16.x, python3.8).
  2. Pick the target current runtime. Typically the latest LTS version supported by Lambda (e.g. python3.12, nodejs20.x).
  3. Test in staging: deploy a copy of the function with the new runtime + your existing code; run integration tests for library compatibility (boto3 / aws-sdk versions ship inside the runtime).
  4. Update production: Lambda → the resource → Edit runtime settings → pick new runtime → Save.
  5. Watch CloudWatch logs + Errors metric for 48h. Python f-string syntax changes, Node ESM/CJS shifts, etc. are common breakers.

These are the steps the finding carries in the product.

Category
Compliance. Configuration drift from best practice: public access, missing MFA, unencrypted storage, deprecated runtimes.
Where it appears
The Compliance tab of Recommendations, with every affected resource listed.
Rule ID
RC-155
Full reference

Lambda Using Deprecated Runtime

Related checks

Idle Lambda FunctionAWSLambda Timeout Too HighAWSLambda Over-Provisioned MemoryAWSACM Certificate Expiring SoonAWSAKS Cluster RBAC Not EnabledAzureAzure NSG Open to InternetAzure

See the compliance findings in your account.

Connect a read-only role and the first pass runs on your own estate. This check, and the rest of the catalogue, with it.

Start freeExplore the playground

Prefer to talk it through first? Book 20 minutes with the team.

  • $30M+annualised cloud spend under management
  • 550K+resources tracked since launch
  • 20-60%off the bill in the first month
  • SOC 2Type II report, plus ISO 27001

Figures published on zop.dev.

Multi-cloud automation· Production-ready in 30 min· SOC 2 · ISO 27001· 20–60% off the bill, first month· 4 platforms · 1 console· Multi-cloud automation· Production-ready in 30 min· SOC 2 · ISO 27001· 20–60% off the bill, first month· 4 platforms · 1 console·