VulnSocial

CVE-2026-55377Disclosure

LOWCVSS 8.1 · HIGH

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

Logto is the modern, open-source auth infrastructure for SaaS and AI apps. Prior to 1.41.0, Logto's Account Center step-up check accepted any active verification record that belonged to the current user and had isVerified === true. A WebAuthn registration verification record for binding a new passkey could be created and verified with only an existing Account API bearer token, then sent in the logto-verification-id header and treated as identityVerified=true by Account Center routes, allowing MFA factor management without proving possession of an existing password, identifier, or MFA factor. This issue is fixed in version 1.41.0.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-287

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-07-12: 1Technical Details · 2026-07-12: 107-12
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
Full discourse1 post
  • Cyber Threat Observatory | Alan Turing Institute@TuringCyberObs
    Disclosure

    CVE-2026-55377 Logto Step-up verification bypass could let attackers with hijacked tokens take over MFA factors and bypass stronger account protections Full analysis: https://github.com/alan-turing-institute/cyber-threat-observatory/blob/main/reports/2026-07-10/TIER_2_CVE-2026-55377.md #CyberSecurity #IdentitySecurity #VulnerabilityManagement

    Post summary

    This post announces CVE-2026-55377, a Logto vulnerability that allows attackers to hijack MFA tokens and bypass stronger account protections.

    0102090
    59 followersView on X

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