Commons Bridge 2026 proxy compromise

Timeline events

• Commons Bridge proxy compromised2026-04-29

  The Commons Bridge proxy on Base was compromised, enabling unauthorized control or removal of approximately 18.45 million SYND.

  Exploit OccurredHigh

• Syndicate disclosed Commons Bridge compromise2026-04-29

  Syndicate disclosed the bridge compromise, began tracing the attacker, and advised users not to provide liquidity during response.

  Hack DisclosedHigh

• Commons Bridge operations paused2026-04-29

  Commons Bridge operation and related liquidity activity were paused during containment and investigation.

  Bridge PausedHigh

• Syndicate began tracing and security investigation2026-04-29

  Syndicate engaged security firms and began tracing attacker activity while assessing reserves and affected users.

  OtherHigh

• Syndicate committed reserves for affected users2026-04-29

  Syndicate stated that sufficient SYND reserves were available to help affected users while the incident response continued.

  Reimbursement AnnouncedHigh

• Commons users automatically reimbursed2026-05-21

  The official shutdown page states that every SYND balance on Commons, including staked SYND and unclaimed rewards, was returned to the corresponding Base wallet plus an additional 15 percent.

  Reimbursement CompletedHigh

• Commons network and bridge wind-down announced2026-05-21

  Syndicate announced the Commons wind-down alongside the Labs lifecycle update and reimbursement outcome.

  Shutdown AnnouncedHigh

  The operator stated that the bridge compromise did not cause the separate Labs wind-down decision.

• Commons Bridge permanently shut down2026-05-21

  The official Commons page states that Commons has shut down and no user claim action is required.

  Shutdown EffectiveHigh

Evidence records

• Syndicate Commons Bridge compromise statement
  Syndicate · Tier 1 · High reliability · primary · 2026-04-29
  Claim scope: Incident Case

  Primary compromise, response, liquidity warning, and reserve-availability statement.

• Syndicate Labs wind-down and Commons reimbursement thread
  Syndicate · Tier 1 · High reliability · primary · 2026-05-21
  Claim scope: Shutdown

  Primary source separating Labs wind-down cause from the compromise and reporting users made whole.

• Commons has shut down
  Syndicate · Tier 1 · High reliability · primary · 2026-05-21
  Claim scope: Reimbursement

  Current official terminal page: all SYND returned automatically to Base wallets plus 15 percent; no user action required.

• Syndicate exploit linked to Commons Bridge compromise
  The Block · Tier 2 · High reliability · secondary · 2026-04-30
  Claim scope: Amount

  Independent amount and attacker-sale context.

• Syndicate Commons Bridge Upgrade Compromise
  DARKNAVY · Tier 2 · High reliability · secondary · 2026
  Claim scope: Incident Case

  Technical privileged-upgrade-path interpretation retained as analysis rather than final primary-source root cause.

• Syndicate Labs to wind down operations
  The Block · Tier 2 · High reliability · secondary · 2026-05-21
  Claim scope: Shutdown

  Independent operator-lifecycle and make-whole context.

• Syndicate Commons Bridge compromise statement
  Syndicate · Tier 1 · High reliability · primary · 2026-04-29
  Claim scope: Shutdown

  Event-scoped duplicate supporting the Commons Bridge and liquidity pause during containment.

• Syndicate Commons Bridge compromise statement
  Syndicate · Tier 1 · High reliability · primary · 2026-04-29
  Claim scope: Reimbursement

  Event-scoped duplicate supporting committed SYND reserves for affected users.

• Commons has shut down
  Syndicate · Tier 1 · High reliability · primary · 2026-05-21
  Claim scope: Reimbursement

  Event-scoped duplicate supporting automatic reimbursement to Base wallets plus 15 percent.

• Syndicate Commons Bridge compromise statement
  Syndicate · Tier 1 · High reliability · primary · 2026-04-29
  Claim scope: Incident Case

  Event-scoped primary copy supporting the Commons Bridge proxy compromise, approximate token amount, containment response, and pause.

• Syndicate Commons Bridge compromise statement
  Syndicate · Tier 1 · High reliability · primary · 2026-04-29
  Claim scope: Incident Case

  Event-scoped primary copy supporting Syndicate's investigation, attacker tracing, liquidity warning, and reserve assessment.

Source tiers describe evidence authority, not certainty for every claim. Tier 1 is the strongest source class; Tier 2 and Tier 3 provide progressively more secondary or supporting context. Source notes define what each record actually supports.