CVE-2026-108162
Pingvin Share X before 1.22.0 Rate Limit Bypass via Spoofed X-Forwarded-For
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-348 |
| Vendor | smp46 |
| Product | pingvin-share-x |
| Published | Oct 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
smp46 / pingvin-share-x
0 < 1.22.0
References
github.com: https://github.com/smp46/pingvin-share-x/security/advisories/GHSA-7gx2-g6x2-7mjg github.com: https://github.com/smp46/pingvin-share-x/commit/25e9cee7fb1c155300b5663fc5fedeea32d20954 github.com: https://github.com/smp46/pingvin-share-x/releases/tag/v1.22.0 github.com: https://github.com/smp46/pingvin-share-x/blob/68ebf191fe1362592ffd5517e662f087e36c10b2/backend/src/main.ts#L57 github.com: https://github.com/smp46/pingvin-share-x vulncheck.com: https://www.vulncheck.com/advisories/pingvin-share-x-before-1.22.0-rate-limit-bypass-via-spoofed-x-forwarded-for
Credits
Matéo Florian Callec