Vulnerability · Published Oct 10, 2026 · Assigned by VulnCheck

CVE-2026-108162Pingvin Share X before 1.22.0 Rate Limit Bypass via Spoofed X-Forwarded-For

Medium 6.5

In plain English

A medium-severity security flaw in pingvin-share-x from smp46. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.2%top 92.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
smp46	pingvin-share-x	0 – before 1.22.0

Weakness: CWE-348 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

References

GitHub Security Advisory (GHSA-7gx2-g6x2-7mjg) vendor-advisory
https://github.com/smp46/pingvin-share-x/commit/25e9cee7fb1c155300b5663fc5fedeea32d20954 patch
pingvin-share-x v1.22.0 Release Notes release-notes
https://github.com/smp46/pingvin-share-x/blob/68ebf191fe1362592ffd5517e662f087e36c10b2/backend/src/main.ts#L57 technical-description
https://github.com/smp46/pingvin-share-x product
VulnCheck Advisory: Pingvin Share X before 1.22.0 Rate Limit Bypass via Spoofed X-Forwarded-For third-party-advisory