Authentication Bypass in Pingvin Share X (CVE-2026-44196)
Summary
Authentication bypass in Pingvin Share X (CVE-2026-44196). Confidential information can be exposed externally. Mitigation: upgrade to 1.16.3 or later.
Original description
The description as published by the source.
Pingvin Share X is a secure and easy self-hosted file sharing platform. From 1.14.1 to 1.16.2, a critical authentication bypass vulnerability allows an attacker who has obtained a valid username and password to skip the second-factor authentication (TOTP) requirement entirely. Although, an attacker still needs the user's password to reach this stage. This vulnerability is fixed in 1.16.3.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-44196 has been found in Pingvin Share X.
Confidential information can be exposed externally. CVSS score: 9.1/10.
What to do: upgrade Pingvin Share X to 1.16.3 or later.
If unsure, ask your IT team or search "Pingvin Share X CVE-2026-44196" on the vendor's site.
CVE-2026-44196 (Pingvin Share X) — CWE-287 / CVSS v3 9.1
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: 1.16.3 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Authentication bypass (CWE-287) exists in Pingvin Share X.
Check the vendor advisory for the affected versions of Pingvin Share X.
Severity: Critical (CVSS 9.1/10). Confidential information can be exposed externally.
Update to 1.16.3.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで Pingvin Share X を使っているサービスとバージョンを洗い出す。
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2Apply patch patch
Upgrade Pingvin Share X to 1.16.3ステージング環境で 1.16.3 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
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3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov