CVE-2026-108162 Pingvin Share X before 1.22.0 Rate Limit Bypass via Spoofed X-Forwarded-For
Attackers can bypass rate limits by spoofing IP headers to brute-force credentials and TOTP codes in Pingvin Share X.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-108162?
CVE-2026-108162 is a medium-severity vulnerability in smp46 pingvin-share-x, published on 10 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
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.
Weakness: CWE-348
Which versions are affected by CVE-2026-108162?
How do I fix CVE-2026-108162?
No fix has been published for CVE-2026-108162 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-108162 being exploited?
There is no known exploitation of CVE-2026-108162 in the wild and no public exploit code.
Sources
Also known as GHSA-3chq-cx7h-2cfx.