Does HeroDevs have an SLA for NES for Express?

Yes. Our response times vary based on the severity of the issue. Security-related and application-breaking issues are our top priority and will be resolved immediately (same day if possible). We can provide our SLA for your team to review upon request.

What Express versions does NES support?

NES for Express supports version 3.x. We provide ongoing support and patches to keep your applications secure and operational.

Does NES for Express help with compliance?

NES for Express helps maintain compliance by providing security patches and updates, even for older versions. Additionally, our enterprise-grade SLA stands up to HIPAA, SOC-2, PCI DSS, etc., and ensures your compliance with these standards. Many CVEs may affect Express 3.x, and we address those for you.

Why do I need NES for Express?

Using an unsupported version of Express exposes your applications to security vulnerabilities and compliance risks. Upgrading to the latest version can be costly and time-consuming. Never-Ending Support (NES) for Express allows you to stay on your current version and remain supported until you are ready to upgrade.

How does licensing work?

When you purchase Never-Ending Support, you acquire a commercial license for the support services. Our pricing model is based on the number of users who will be committing code to the project repo. Users are unnamed and transferable across team members.

I got an error like "EOL/Obsolete Software: Express 3.x Detected." What can I do?

This means your application is running Express 3.x, which is no longer supported and lacks security updates. NES for Express ensures your Express.js applications remain secure, compliant, and fully maintained. Talk to our sales team to explore your options.

Secure drop-in replacements for Express version 3.x

NEVER-ENDING SUPPORT FOR
Express

Name: NES for Express
Brand: HeroDevs
Rating: 5 (21 reviews)

Legacy Express versions still function after support ends — but that's not good enough for internal SLAs, CVE disclosures, and security audits.

Never-Ending Support (NES) for Express keeps you compliant, secure, and audit-ready without an unplanned migration or risky patchwork.

Get Pricing

View Docs

Patch CVEs, Meet Internal SLAs, Pass Audits — in Minutes.

NES for Express

is a secure drop-in replacement for

Express

and takes just a few minutes to set up.

Step 1

Update your package.json

Step 2

Set up token

Step 3

Install & Run!

CVE Protection

0 Security Issues Fixed in NES for Express
(and always looking for more)

By purchasing HeroDevs’ Never-Ending Support for Express, you’re ensuring that your Express applications stay secure and these vulnerabilities are mitigated. As more CVEs are discovered, you can rest easy knowing HeroDevs will fix them.

If you’re currently using Express in your application’s tech stack, your application is vulnerable to the CVEs listed below.

Switch to NES for Express in minutes to immediately mitigate these vulnerabilities.

Severity

ID

Technology

Libraries Affected

HeroDevs Partners with the OpenJS Foundation

HeroDevs is the founding member of the OpenJS Foundation’s Ecosystem Sustainability Program (ESP) which was developed to address critical issues within the JavaScript community – particularly those related to maintenance and sustainability of open source projects that have reached end-of-life. HeroDevs is also a Gold Member of the OpenJS Foundation.

As part of OpenJS ESP, HeroDevs will continue to offer Never-Ending Support for many of the OpenJS projects, like ESLint, Express and more.

What is Never-Ending Support?

Security Fixes

A new version of NES for Express will be released each time we find, validate, and fix a security issue.

Drop-In Compatibility

A direct replacement for your framework—no migrations, no rewrites, just ongoing support.

SLA Compliance

Our patch delivery SLA guarantees that your organization will be compliant with SOC 2, NIS2, PCI DSS, HIPAA and other compliance standards and regulations.

Learn more.

Team of Experts

NES for Express is built with advisement and consultation of core team members from Express.

Easy to Install

Our simple drop-in replacement is simple, just point to the NES version and run npm install. No app code changes required.

Commercial Contract Assurances

OSS NES is not only secure and compatible, but is offered with industry standard commercial assurances for the use of HeroDevs Services.

Learn more.

NES for Express Use Cases

The Regulated Enterprise Racing an Audit Deadline

BEFORE — THE PAIN

AFTER — WITH HERODEVS

A $2B financial services firm’s SOC 2 Type II auditor flags Express 3 as an unsupported dependency across 40 production services. Engineering estimates 9 months and $1.2M to migrate to Express 5. The audit deadline is 90 days out. The CISO has no path that closes the finding in time—and every day open is renewal risk with enterprise customers.

HeroDevs NES for Express 3 available immediately. The signed vendor contract, documented SLA, and patch cadence artifacts commitment become the auditor’s evidence. The migration moves onto the engineering roadmap at a sane pace. SOC 2 attestation ships on time. The CISO keeps the customer renewals—and the engineering quarter.

The Platform Team Absorbing Inherited Technical Debt

BEFORE — THE PAIN

AFTER — WITH HERODEVS

A Fortune 500 platform team inherits 80+ Express 3 microservices from an acquisition. The original architects have left. Test coverage is patchy. A new High-severity CVE drops in path-to-regexp and no one can say with confidence which services are exposed, how to patch safely, or whether the fix will break production. The team is reactive every Friday.

NES delivers tested, drop-in patches across the entire 80-service fleet with a single contract. The platform team stops firefighting, regains proactive capacity, and modernizes on a prioritized plan. CVE response becomes a workflow, not a weekend. Team trust in the inherited stack is rebuilt in one quarter.

The Full-Stack JavaScript Shop Consolidating Vendors

BEFORE — THE PAIN

AFTER — WITH HERODEVS

A mid-market SaaS runs AngularJS admin UI, Angular customer portal, Vue marketing site, Next.js mobile backend, and Express backend. They hold NES contract for AngularJS but not for other EOL versions of the JavaScript stack.

One HeroDevs contract covers the full JavaScript stack: AngularJS, Angular, Vue, Next.js, Node.js, and Express. One SLA. One vendor relationship. Bundle discount reduces TCO. When a cross-cutting CVE lands, HeroDevs ships coordinated patches across every layer—because they own every layer.

Why HeroDevs?

We Partner With Core Contributors

We collaborate with the Express project to ensure our Never-Ending Support (NES) for Express product is the same quality you’ve come to expect.

By involving core maintainers of the library, we set a new standard in open source software maintenance to ensure that NES for Express is as dependable as the original technology it’s built on.

We Give Back To Open Source

HeroDevs is deeply committed to the open source community. We support it through sponsorships, backing core contributors, and funding events that drive the ecosystem forward. Our engagement extends beyond financial contributions, embodying a commitment to the ongoing growth and innovation of open source software. This holistic support ensures the vitality of the open-source movement, fostering an environment of collaboration and advancement.

Support

Frequently Asked Questions

Below are common questions our customers have. Of course, we’re happy to meet with you and answer these and other questions you might have.

Related Products

If you're leveraging this technology, chances are you're also using complementary systems that face similar end-of-life (EOL) challenges.

Explore our related NES products that offer proactive, comprehensive support for your entire tech stack to ensure continuity, security, and innovation across all your essential technologies.

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