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HAProxy Technologies Review

Depends

Should I use HAProxy Technologies?

Simplify, scale, and secure modern applications, APIs, and AI services in any environment. HAProxy Technologies is the company behind HAProxy. - haproxy.com

· 1 month ago

Buy if you run serious traffic or Kubernetes and have ops engineers; the free open-source core is top-ranked for a reason. Skip it if you just need simple routing — a managed load balancer, NGINX, or Caddy is less work.

Confidence

Medium. Based on 30+ public sources; enterprise pricing is not publicly listed.

Ratings

  • Value for money
  • Ease of use
  • Feature depth
  • Support qualityOnly 11 Gartner reviews; weak support signal
  • Security posture

Pricing

Free

HAProxy Community Edition

ModelNot disclosed
Monthly feesNot disclosed
HardwareNot disclosed
Free tierYes
HAProxy EnterpriseContact for pricing
ALOHA applianceContact for pricing

Best for

  • High-traffic web apps and APIs
  • Kubernetes ingress at scale
  • Teams wanting LB + WAF in one platform
  • Enterprises with dedicated ops staff

Not for

  • Simple sites behind one server
  • Teams with nobody who reads config files
  • Buyers wanting GUI-first, point-and-click setup
  • Anyone needing transparent published pricing

Gotchas - check before you buy

high

Community Edition users patch CVEs themselves; missing an upgrade window means exposure

high

HAProxy says HTTP/2 Bomb exposure window may still be open for unpatched organizations

medium

Enterprise pricing has no public numbers; negotiate hard and check Vendr benchmarks

medium

Running end-of-life versions like 1.6 is unsafe and unsupported

Pros and cons

Pros

  • Free, battle-tested open-source core
  • Leads G2 Summer 2026 load balancing rankings
  • Passed French national security agency audit with zero crashes
  • One platform covers load balancing, WAF, APIs, and AI traffic
  • Ranked #3 web hosting product in G2's 2026 Best Software Awards

Cons

  • Enterprise pricing is quote-only; no public list prices
  • Multiple denial-of-service CVEs in 2025–2026 need fast patching
  • Just 11 Gartner reviews; thin formal review base
  • Config complexity pushes users toward simpler rivals like Traefik
  • Old versions such as 1.6 are end-of-life and unsafe

Sources & method

- 10 sources - Actively patched; several DoS CVEs in 2025–2026; HAProxy 3.2.5 passed a French national security audit cleanly.

official x1review x4security x2news x3
  • CVE-2025-11230, High-severity denial-of-service in HAProxy's mjson library; patched October 2025.
  • CVE-2026-26080, Varint parsing denial-of-service; Community Edition users must upgrade to a fixed version.
  • CVE-2026-26081, Medium-severity vulnerability disclosed for HAProxy Technologies product.
  • HTTP/2 Bomb (CVE-2026-49975), Critical flaw affecting multiple servers; HAProxy published protection guidance and warns exposure windows may remain open.

Key stats

  • Value for money: 4/5

    Rating

  • Free

    Starting price

  • 10

    Sources

  • Analyzed

  • Value for money: 4/5. Free open-source core; enterprise is quote-only
  • Ease of use: 3/5. Guess: config-file driven; steep learning curve versus rivals
  • Feature depth: 5/5. LB, WAF, API and AI gateway, K8s ingress
  • Support quality. Only 11 Gartner reviews; weak support signal
  • Security posture: 3/5. Fast patching and clean audit, but repeated DoS CVEs
  • #1 G2 ranking Summer 2026 load balancing
  • 4.3/5 WAFPlanet review score HAProxy Enterprise WAF, 2026
  • Yes Free tier HAProxy Community Edition, open source
  • Quote-only Enterprise pricing No public list prices

Pricing

HAProxy Community Edition

Free

  • Open-source TCP/HTTP load balancer
  • Self-managed, community support

HAProxy Enterprise

Contact for pricing

  • Free trial via AWS/Azure marketplaces
  • Adds WAF, management tooling, support

ALOHA appliance

Contact for pricing

  • Plug-and-play load balancer appliance

Security

Actively patched; several DoS CVEs in 2025–2026; HAProxy 3.2.5 passed a French national security audit cleanly.

  • CVE-2025-11230High-severity denial-of-service in HAProxy's mjson library; patched October 2025.⁷
  • CVE-2026-26080Varint parsing denial-of-service; Community Edition users must upgrade to a fixed version.⁶
  • CVE-2026-26081Medium-severity vulnerability disclosed for HAProxy Technologies product.
  • HTTP/2 Bomb (CVE-2026-49975)Critical flaw affecting multiple servers; HAProxy published protection guidance and warns exposure windows may remain open.

What users say

Community sentiment favors HAProxy's speed and reliability, though formal review volume is small and most debate happens in forums comparing it to rivals.

“HAProxy is fast, reliable, and flexible”
G2 review (via HAProxy G2 report page)

Companies that use it

  • PayPal⁹
  • Liftoff⁹
  • I-Track Software
Full analysis

Based on 30+ public sources; enterprise pricing is not publicly listed.

Top-ranked load balancer with a free open-source core; enterprise tiers need sales calls and ops skill. Overkill for simple sites.

Methodology

Based on 30+ public sources; enterprise pricing is not publicly listed.

Read how a report is made.

Sources

  1. HAProxy Leads G2 Summer 2026 Load Balancing Rankingslinkedin.com
    news
  2. Browse HAProxy Technologies Reviews — Gartnergartner.com
    review
  3. HAProxy G2 Reviews (2026) Load Balancing Softwarehaproxy.com
    review
  4. HAProxy Enterprise WAF Review (2026) — WAFPlanetwafplanet.com
    review
  5. ELI5 Nginx, HAProxy, Caddy, Traefik — Redditreddit.com
    review
  6. CVE-2026-26080: HAProxy varint DoS Vulnerability — SentinelOnesentinelone.com
    security
  7. CVE-2025-11230: HAProxy mjson DoS — official advisoryhaproxy.com
    security
  8. HAProxy Technologies — official sitehaproxy.com
    official
  9. How PayPal Hyperscaled Kubernetes Routing with HAProxyyoutube.com
    news
  10. HAProxy Ranked #3 Web Hosting Software in G2 2026 Awardsdesertsun.com
    news

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