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Pingvin Share X CVE-2026-49467

| EUVDEUVD-2026-57356 HIGH
Incorrect Implementation of Authentication Algorithm (CWE-303)
2026-08-12 GitHub_M
8.8
CVSS 3.1 · Vendor: GitHub_M
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Severity by source

Vendor (GitHub_M) PRIMARY
8.8 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
8.3 HIGH

PR:L confirmed by requirement for a valid account; A:L rather than A:H because primary harm is integrity loss (2FA bypass), not service disruption.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

Primary rating from Vendor (GitHub_M).

CVSS VectorVendor: GitHub_M

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Patch available
Aug 12, 2026 - 18:17 EUVD
Analysis Generated
Aug 12, 2026 - 18:06 vuln.today
CVE Published
Aug 12, 2026 - 17:02 cve.org
HIGH 8.8

DescriptionCVE.org

Pingvin Share X is a secure and easy self-hosted file sharing platform. A vulnerability in versions 1.5.0 through 1.18.0 allow an attacker to bypass password verification when managing Time-based One-Time Password (TOTP) settings. The root cause is a missing await keyword on calls to the asynchronous verifyPassword method in authTotp.service.ts and the authenticateUser method in auth.service.ts. In JavaScript, an unawaited Promise is always truthy. So the logic intended to throw a ForbiddenException when a password is incorrect. It never executes because the expression evaluates the existence of the Promise object rather than its resolved boolean result. The vulnerability is fixed in version 1.18.1 by ensuring all asynchronous authentication calls are properly awaited. There are no official workarounds. If a user is locked out, an administrator must manually reset the user's TOTP status in the database.

AnalysisAI

Pingvin Share X versions 1.5.0 through 1.18.0 expose an authentication bypass in TOTP management endpoints due to a JavaScript async/await coding defect. An authenticated attacker with a low-privileged account can modify or disable TOTP two-factor authentication settings on an account without supplying a correct password, effectively neutralizing 2FA protections. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Delivery
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Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires a valid authenticated user account on the target Pingvin Share X instance (PR:L per CVSS vector). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The NVD CVSS score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) accurately reflects network accessibility and low-complexity exploitation but warrants nuance. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Upgrade to Pingvin Share X version 1.18.1, which resolves the issue by adding the missing `await` keyword to all asynchronous authentication calls in `authTotp.service.ts` and `auth.service.ts`. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, disable TOTP endpoints or restrict administrative access until patched; enable audit logging on all 2FA modification attempts. …

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CVE-2026-49467 vulnerability details – vuln.today

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