{"id":"CVE-2026-108162","aliases":["EUVD-2026-96317","GHSA-3chq-cx7h-2cfx","GHSA-7gx2-g6x2-7mjg"],"status":"published","title":"Pingvin Share X before 1.22.0 Rate Limit Bypass via Spoofed X-Forwarded-For","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.","severity":{"version":"4.0","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","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00183,"percentile":0.08018,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-307","CWE-348"],"published":"2026-10-10T13:55:13Z","modified":"2026-10-28T02:30:50Z","products":[{"vendor":"smp46","product":"pingvin-share-x"}],"references":[{"url":"https://github.com/smp46/pingvin-share-x/security/advisories/GHSA-7gx2-g6x2-7mjg","tags":["vendor-advisory","advisory"]},{"url":"https://github.com/smp46/pingvin-share-x/commit/25e9cee7fb1c155300b5663fc5fedeea32d20954","tags":["patch","fix"]},{"url":"https://github.com/smp46/pingvin-share-x/releases/tag/v1.22.0","tags":["release-notes","advisory"]},{"url":"https://github.com/smp46/pingvin-share-x/blob/68ebf191fe1362592ffd5517e662f087e36c10b2/backend/src/main.ts#L57","tags":["technical-description","article"]},{"url":"https://github.com/smp46/pingvin-share-x","tags":["product","package"]},{"url":"https://www.vulncheck.com/advisories/pingvin-share-x-before-1.22.0-rate-limit-bypass-via-spoofed-x-forwarded-for","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-108162","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-3chq-cx7h-2cfx"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108162.json","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108163.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-108163","tags":["advisory"]},{"url":"https://www.vulncheck.com/advisories/pingvin-share-x-before-1.22.0-ineffective-authentication-rate-limiting-via-throttler-ttl","tags":["advisory"]},{"url":"https://github.com/smp46/pingvin-share-x/commit/dc0aa5f66287038d5f919e74948462f994b1d6b1","tags":["fix"]},{"url":"https://github.com/smp46/pingvin-share-x/blob/68ebf191fe1362592ffd5517e662f087e36c10b2/backend/src/auth/auth.controller.ts#L45-L50","tags":["article"]}],"sources":{"cve":[{"id":"CVE-2026-108162","title":"Pingvin Share X before 1.22.0 Rate Limit Bypass via Spoofed X-Forwarded-For","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.","status":"published","published":"2026-10-10T13:55:13.47Z","modified":"2026-10-13T11:32:31.911Z","cvss":[{"version":"4.0","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","level":"medium","assessor":"cna"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-348"],"updated_at":"2026-11-02T14:20:10.510075Z"}],"euvd":[{"id":"EUVD-2026-96317","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.","status":"published","published":"2026-10-10T13:55:13Z","modified":"2026-10-13T11:32:31Z","cvss":[{"version":"4.0","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","level":"medium"}],"updated_at":"2026-11-02T17:27:21.215493Z"}],"ghsa":[{"id":"GHSA-3chq-cx7h-2cfx","title":"Pingvin Share X before 1.22.0 contains a rate limit bypass vulnerability that allows...","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.","status":"published","published":"2026-10-10T15:30:22Z","modified":"2026-10-10T15:30:29Z","cvss":[{"version":"4.0","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-348"],"updated_at":"2026-11-02T15:13:02.546582Z"}],"nvd":[{"id":"CVE-2026-108162","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.","status":"published","published":"2026-10-10T14:16:37.397Z","modified":"2026-10-16T19:18:44.867Z","cvss":[{"version":"4.0","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-348"],"updated_at":"2026-11-02T14:12:55.874869Z"}],"osv":[{"id":"CVE-2026-108162","title":"Pingvin Share X before 1.22.0 Rate Limit Bypass via Spoofed X-Forwarded-For","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.","status":"published","published":"2026-10-10T13:55:13.47Z","modified":"2026-11-11T10:47:23.253328667Z","cvss":[{"version":"4.0","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","level":"medium"}],"cwes":["CWE-348"],"updated_at":"2026-11-11T03:22:28.447808Z"},{"id":"CVE-2026-108163","title":"Pingvin Share X before 1.22.0 Ineffective Authentication Rate Limiting via Throttler TTL","description":"Pingvin Share X before 1.22.0 contains an ineffective rate limiting vulnerability because throttler TTL values specified in seconds are interpreted as milliseconds. Unauthenticated attackers can send effectively unthrottled requests to /api/auth/signIn, /api/auth/signIn/totp and /api/auth/resetPassword to brute-force passwords and TOTP codes.","status":"published","published":"2026-10-10T13:55:14.177Z","modified":"2026-10-28T02:30:28.97743939Z","cvss":[{"version":"4.0","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","level":"medium"}],"cwes":["CWE-307"],"updated_at":"2026-11-02T15:44:54.933106Z"}]}}