CVE-2026-119128

LOWCVSS 9.1 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

ZITADEL 4.0.0 before 4.19.5 contains an authentication bypass vulnerability in the Login V2 UI that allows unauthenticated attackers to set the first credential of users lacking any authentication method. Attackers can compute a valid verificationCheck cookie from the user ID and browser fingerprint to set a password, register a passkey, or link an identity provider, taking over the account.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-565

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-10-29: 110-29
Referenced assets1 URL
By indicator
Full discourse1 post
  • cve.now@cvedotnow

    🔴 zitadel: account takeover in Login V2 via forgeable cookie (CVE-2026-119128) An unauthenticated attacker can forge a verification cookie to take over accounts with no login method set up. Patch → 4.19.5 https://cve.now/CVE-2026-119128

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