Pingvin Share X before 1.22.0 contains a rate limit bypass vulnerability that allows unauthenticated remote attackers to evade per-IP throttling because backend/src/main.ts unconditionally trusts proxy headers. Attackers can rotate spoofed X-Forwarded-For values against /api/auth/signIn, /api/auth/signIn/totp, and /api/auth/resetPassword to brute-force passwords and TOTP codes and forge logged client IP addresses.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
smp46 pingvin-share-x unaffected
Version Status Constraints
0 affected < 1.22.0

No data.

No data.

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/smp46/pingvin-share-x cve-icon cve-icon
https://github.com/smp46/pingvin-share-x/blob/68ebf191fe1362592ffd5517e662f087e36c10b2/backend/src/main.ts#L57 cve-icon cve-icon
https://github.com/smp46/pingvin-share-x/commit/25e9cee7fb1c155300b5663fc5fedeea32d20954 cve-icon cve-icon
https://github.com/smp46/pingvin-share-x/releases/tag/v1.22.0 cve-icon cve-icon
https://github.com/smp46/pingvin-share-x/security/advisories/GHSA-7gx2-g6x2-7mjg cve-icon cve-icon
https://www.vulncheck.com/advisories/pingvin-share-x-before-1.22.0-rate-limit-bypass-via-spoofed-x-forwarded-for cve-icon cve-icon
History

Sat, 10 Oct 2026 15:45:00 +0000

Type Values Removed Values Added
First Time appeared Smp46
Smp46 pingvin-share-x
Vendors & Products Smp46
Smp46 pingvin-share-x

Sat, 10 Oct 2026 14:00:00 +0000

Type Values Removed Values Added
Description Pingvin Share X before 1.22.0 contains a rate limit bypass vulnerability that allows unauthenticated remote attackers to evade per-IP throttling because backend/src/main.ts unconditionally trusts proxy headers. Attackers can rotate spoofed X-Forwarded-For values against /api/auth/signIn, /api/auth/signIn/totp, and /api/auth/resetPassword to brute-force passwords and TOTP codes and forge logged client IP addresses.
Title Pingvin Share X before 1.22.0 Rate Limit Bypass via Spoofed X-Forwarded-For
Weaknesses CWE-348
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-10T13:55:13.470Z

Reserved: 2026-10-09T15:41:44.133Z

Link: CVE-2026-108162

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-10T14:16:37.397

Modified: 2026-10-10T14:16:37.397

Link: CVE-2026-108162

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-10T15:30:17Z

Weaknesses