CVE-2026-108162GHSA-7gx2-g6x2-7mjg
pingvin-share-x: Pingvin Share X before 1.22.0 Rate Limit Bypass via Spoofed X-Forwarded-For
smp46 pingvin-share-x
CVSS
6.9MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.18%Chance of exploitation activity in the next 30 days, higher than 7% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 1.22.0pingvin-share-xCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
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.
Text from CVE List
Affected versions 1
- pingvin-share-xaffected: all versions before 1.22.0CVE List
References 6
- github.com/smp46/pingvin-share-x/commit/25e9cee7fb1c155300b5663fc5fedeea32d20954Fixvia CVE List
- github.com/smp46/pingvin-share-x/releases/tag/v1.22.0Fixvia CVE List
- github.com/smp46/pingvin-share-x/security/advisories/GHSA-7gx2-g6x2-7mjgAdvisoryvia CVE List
- vulncheck.com/advisories/pingvin-share-x-before-1.22.0-rate-limit-bypass-via-spoofed-x-forwarded-forAdvisoryvia CVE List
- github.com/smp46/pingvin-share-x/blob/68ebf191fe1362592ffd5517e662f087e36c10b2/backend/src/main.ts#L57Referencevia CVE List
- github.com/smp46/pingvin-share-xReferencevia CVE List