← Back to home
Comparison · Comms

Roundcube vs Rocket.Chat

A side-by-side editorial comparison of Roundcube and Rocket.Chat — release velocity, themes, recent moves, and the top alternatives to consider.

Shared themes:self-hosted

Roundcube vs Rocket.Chat: at a glance

FeatureRoundcubeRocket.Chat
SectorCommsComms
Velocity score5.06.3
Sparks · 30d01
Top themeswebmail, php, security, oidcair-gapped, fips-compliance, ai-search, oauth-hardening
Last editorial update3h ago1h ago
WebsiteVisit →Visit →

What is Roundcube?

After four years, Roundcube 1.7 lands — and the release stream is otherwise all CVEs

Roundcube maintains two lines in lockstep: 1.6 as LTS and 1.7 as stable, with security fixes released to both on the same day. The vulnerability stream is heavy and varied — stored XSS via an unescaped attachment MIME type (CVE-2026-54432), a pre-auth SQL injection in the virtuser_query plugin, CSS injection through SVG animate, SSRF bypasses via local address URLs, an infinite loop in the TNEF decoder. Version 1.7.0, released in May after almost four years of development, is the only feature release in the window.

Read the full Roundcube trajectory →

What is Rocket.Chat?

Rocket.Chat is building for the air-gapped enterprise, and adding an AI layer on the way

Rocket.Chat ships on a release-candidate train where a single .rc.0 carries every functional change and the RCs that follow it are pure version bumps. The 8.7.0-rc.0 drop is the substantive one: AI Search with semantic message results and optional OpenAI-compatible answers, FIPS-mode support across the monolith and all six microservices, phishing-resistant server-side OAuth, and an offline license flag that suppresses every outbound call to Rocket.Chat Cloud. Underneath, a systematic migration is replacing deprecated DDP methods with REST endpoints ahead of 9.0.

Read the full Rocket.Chat trajectory →

Roundcube vs Rocket.Chat: editorial side-by-side

R5.0

After four years, Roundcube 1.7 lands — and the release stream is otherwise all CVEs

◆ Current state

Roundcube maintains two lines in lockstep: 1.6 as LTS and 1.7 as stable, with security fixes released to both on the same day. The vulnerability stream is heavy and varied — stored XSS via an unescaped attachment MIME type (CVE-2026-54432), a pre-auth SQL injection in the virtuser_query plugin, CSS injection through SVG animate, SSRF bypasses via local address URLs, an infinite loop in the TNEF decoder. Version 1.7.0, released in May after almost four years of development, is the only feature release in the window.

◆ Where it's heading

The arc is a long-lived webmail codebase paying down structural risk. 1.7.0's headline changes are defensive rather than user-facing: a mandatory public_html/ entry point so installations aren't exposed by default, improved OAuth2/OIDC support including discovery and logout, removed code bloat and automated code style and quality checks. Everything since has been paired security releases across both lines, several of them reporting classes of bug — sanitizer bypasses, injection through plugin queries — that the 1.7 hardening work is aimed at. Expect the security cadence to stay high while the 1.6 LTS remains supported.

◆ Prediction

Expect continued same-day paired security releases on 1.6 and 1.7, with 1.7.x accruing incremental OIDC and sanitizer hardening before any 1.8 work becomes visible.

Rocket.Chat logo6.3

Rocket.Chat is building for the air-gapped enterprise, and adding an AI layer on the way

◆ Current state

Rocket.Chat ships on a release-candidate train where a single .rc.0 carries every functional change and the RCs that follow it are pure version bumps. The 8.7.0-rc.0 drop is the substantive one: AI Search with semantic message results and optional OpenAI-compatible answers, FIPS-mode support across the monolith and all six microservices, phishing-resistant server-side OAuth, and an offline license flag that suppresses every outbound call to Rocket.Chat Cloud. Underneath, a systematic migration is replacing deprecated DDP methods with REST endpoints ahead of 9.0.

◆ Where it's heading

Two pushes are converging. One is regulated and sovereign deployment — FIPS-compliant cryptography behind a licensed fips module, air-gapped workspaces that never phone home, ABAC attribute stores via Virtru in 8.6, and OAuth hardened with PKCE, CSRF and state validation plus 2FA enforcement on social logins. The other is an AI surface, introduced as AI Search plus an AI Center configuration page rather than a scattering of features. The DDP-to-REST work is the plumbing both depend on, and it is gated on the 9.0 boundary.

◆ Prediction

Expect 8.7 to reach general availability with AI Center expanded past search into a configurable model-provider surface, and the remaining DDP methods retired as 9.0 approaches. Whether the fips and offline license modules become a distinct compliance tier or stay bundled with the existing enterprise plan is not visible in these entries.

Alternatives to Roundcube and Rocket.Chat

Other Comms products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Roundcube or Rocket.Chat.

See all Roundcube alternatives → · See all Rocket.Chat alternatives →

Recent activity from Roundcube and Rocket.Chat

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 13h agoRocket.Chat8.7.0-rc.3: Meteor package version bump only
  2. 8d agoRocket.Chat8.7.0-rc.2: dependency bump, no functional change
  3. 8d agoRocket.Chat8.7.0-rc.1: dependency bump, no functional change
  4. 10d agoRocket.Chat8.7 adds AI Search, FIPS mode and phishing-resistant OAuth
  5. 26d agoRoundcubeRoundcube LTS patches attachment XSS, SSRF and a TNEF loop
  6. 26d agoRoundcubeRoundcube 1.7 gets the same attachment XSS and SSRF fixes
  7. 28d agoRocket.Chat8.6.0-rc.3: dependency bump, no functional change
  8. 1mo agoRocket.Chat8.6.0-rc.2: dependency bump, no functional change
  9. 1mo agoRoundcubeRoundcube LTS fixes a pre-auth SQL injection in virtuser_query
  10. 1mo agoRoundcubeRoundcube 1.7.1 carries the pre-auth SQL injection fixes
  11. 2mo agoRoundcubeRoundcube Webmail 1.7.0
  12. 4mo agoRoundcubeRoundcube 1.6.15 fixes an SVG animate bypass and search regressions

Frequently asked questions

What is the difference between Roundcube and Rocket.Chat?

Both compete on the same themes — self-hosted — within Comms. Rocket.Chat is currently shipping more aggressively (velocity 6.3 vs 5.0), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is Roundcube better than Rocket.Chat?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Rocket.Chat is currently shipping more aggressively (velocity 6.3 vs 5.0), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Comms products to evaluate alongside.

What are the best alternatives to Roundcube?

Top Roundcube alternatives in Comms are ranked by recent ship velocity. Browse the "Roundcube alternatives" section above for the current picks, or visit /alternatives/roundcube for the full list with editorial commentary on each.

What are the best alternatives to Rocket.Chat?

Top Rocket.Chat alternatives in Comms are ranked by recent ship velocity. Browse the "Rocket.Chat alternatives" section above for the current picks, or visit /alternatives/rocketchat for the full list with editorial commentary on each.