Maddy
A one-binary mail server learning to behave like production infrastructure.
Comparison · Comms
Roundcube vs diaspora
A side-by-side editorial comparison of Roundcube and diaspora — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:self-hosted
Roundcube vs diaspora: at a glance
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.
What is diaspora?
The original federated social network now ships roughly once every two years.
diaspora* is a decentralised social network run as independent pods by volunteer administrators. Release cadence has collapsed to near-dormancy: 0.9.0.0 arrived in June 2024 after a two-year gap, and 0.9.1.0 followed in April 2026 — the release notes open with "it's been a while." What still ships reliably is security work, including a fixed SSRF vulnerability in the OpenID Connect implementation and, earlier, image-processing hardening adapted from Mastodon's fix.
Roundcube vs diaspora: editorial side-by-side
Roundcube
5.0COMMS
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.
diaspora
0.0COMMS
The original federated social network now ships roughly once every two years.
◆ Current state
diaspora* is a decentralised social network run as independent pods by volunteer administrators. Release cadence has collapsed to near-dormancy: 0.9.0.0 arrived in June 2024 after a two-year gap, and 0.9.1.0 followed in April 2026 — the release notes open with "it's been a while." What still ships reliably is security work, including a fixed SSRF vulnerability in the OpenID Connect implementation and, earlier, image-processing hardening adapted from Mastodon's fix.
◆ Where it's heading
The one real forward move in this window was 0.9.0.0, which opened a supported public API and switched configuration to TOML with notice that YAML support ends at 1.0. Everything since has been maintenance. The project's own framing — a minor version described as not too exciting, urging podmins to update because it is a security release — sets the expectation plainly: diaspora* is being kept safe to run rather than developed toward anything new.
◆ Prediction
A 1.0 release removing YAML configuration support is the stated next milestone, but with two years between the last two releases the timing is unpredictable. The more likely near-term event is another security-driven patch.
Alternatives to Roundcube and diaspora
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 diaspora.
Friendica
Friendica keeps betting on being the fediverse node that speaks everyone else's protocols.
mailcow
Six releases, and every one of them is a security update in some form.
Element iOS
Renamed Element Classic, this client now ships one small fix every few months
Twilio
Twilio is selling trust: branded calls, scoped keys, and stricter sender vetting.
Notion
Notion is turning Custom Agents into event-driven workers with their own runtime and billing.
See all Roundcube alternatives → · See all diaspora alternatives →
Recent activity from Roundcube and diaspora
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 27d agoRoundcubeRoundcube LTS patches attachment XSS, SSRF and a TNEF loop
- 27d agoRoundcubeRoundcube 1.7 gets the same attachment XSS and SSRF fixes
- 1mo agoRoundcubeRoundcube LTS fixes a pre-auth SQL injection in virtuser_query
- 1mo agoRoundcubeRoundcube 1.7.1 carries the pre-auth SQL injection fixes
- 2mo agoRoundcubeRoundcube Webmail 1.7.0 ⚡
- 3mo agodiasporadiaspora* 0.9.1.0 patches an SSRF hole in its OIDC implementation
- 4mo agoRoundcubeRoundcube 1.6.15 fixes an SVG animate bypass and search regressions
- 2y agodiasporadiaspora* 0.9.0.0 opens a supported API and moves config to TOML ⚡
- 3y agodiasporadiaspora* 0.7.18.2 hardens user image processing
- 3y agodiasporadiaspora* 0.7.18.1 fixes startup with multiple bundler versions
- 4y agodiasporadiaspora* 0.7.18.0 upgrades to Rails 6.1
- 4y agodiasporadiaspora* 0.7.17.0 blocks mass assignment of password and 2FA settings
Frequently asked questions
What is the difference between Roundcube and diaspora?
Both compete on the same themes — self-hosted — within Comms. Roundcube is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 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 diaspora?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Roundcube is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 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 diaspora?
Top diaspora alternatives in Comms are ranked by recent ship velocity. Browse the "diaspora alternatives" section above for the current picks, or visit /alternatives/diaspora for the full list with editorial commentary on each.