Pingvin Share X from 0.19.0 before 1.22.0 contains an improper authentication vulnerability that allows remote unauthenticated attackers to take over accounts by abusing automatic OAuth email linking in OAuthService.signUp(). Attackers can register a victim's unverified email on an enabled OAuth/OIDC provider, exploiting the missing email_verified check in GenericOidcProvider, to sign in as the victim including administrators while bypassing TOTP.
CVE-2026-108157
HIGHPre-NVD 8.18.1—Trending — 3 sources updated this week
EchelonGraph scoreHIGH confidence
Score 8.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-10-09. A secondary CVSS source baseline 8.1; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: ghsa, secondary
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 8.1Exploit: None knownExposed services: Not assessed
A fix is available — apply it.
- CVSS v3
- 8.1
- EG Score
- 8.1HIGHhigh confidence
- EG Risk
- 51EG Risk 51/100CISA SSVC
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity81% × 45%Exploitation0% × 40%Automatability100% × 15%CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
October 9, 2026
Last Modified
October 9, 2026
Advisory Details (6)
Auto-updated Oct 9, 2026Patch available. Sources: github, github_commit, github_release.
generic
Pingvin Share X 0.19.0 before 1.22.0 Account Takeover via OAuth Email Linking | Advisories | VulnCheck
https://www.vulncheck.com/advisories/pingvin-share-x-0.19.0-before-1.22.0-account-takeover-via-oauth-email-linkinggeneric
GitHub - smp46/pingvin-share-x: Pingvin Share X is a secure and easy self-hosted file sharing platform. · GitHub
https://github.com/smp46/pingvin-share-xgithub_release Patch Available
v1.22.0
Patch available: smp46/pingvin-share-x v1.22.0
https://github.com/smp46/pingvin-share-x/releases/tag/v1.22.0generic
pingvin-share-x/backend/src/oauth/oauth.service.ts at de7ffecf9bfc4976993149a5c4c98efe35161424 · smp46/pingvin-share-x · GitHub
https://github.com/smp46/pingvin-share-x/blob/de7ffecf9bfc4976993149a5c4c98efe35161424/backend/src/oauth/oauth.service.ts#L158-L175github_commit Patch Available
commit 07aa8c0a9603 (smp46/pingvin-share-x)
Patch available: smp46/pingvin-share-x v1.22.0 (contains commit 07aa8c0a9603)
https://github.com/smp46/pingvin-share-x/commit/07aa8c0a96030c439e9018ce94a2778bd37304e6githubMentions a patch (unverified)
Account Takeover via Automatic OAuth Email Linking & Missing OIDC Email Verification · Advisory · smp46/pingvin-share-x · GitHub
https://github.com/smp46/pingvin-share-x/security/advisories/GHSA-wrcg-4874-45p7Vendor Advisories for CVE-2026-108157(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 6× in last 7d / 6× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-10-09 18:34 UTCEG score recompute
- 2026-10-09 18:34 UTCGHSA enrichment
- 2026-10-09 17:55 UTCEG score recompute
- 2026-10-09 17:19 UTCEG score recompute
- 2026-10-09 16:28 UTCEG score recompute
- 2026-10-09 16:28 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(4)
What is CVE-2026-108157?
CVE-2026-108157 is a high vulnerability published on October 9, 2026. Pingvin Share X from 0.19.0 before 1.22.0 contains an improper authentication vulnerability that allows remote unauthenticated attackers to take over accounts by abusing automatic OAuth email linking in OAuthService.signUp(). Attackers can register a victim's unverified email on an enabled…
When was CVE-2026-108157 disclosed?
CVE-2026-108157 was first published on October 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-108157?
CVE-2026-108157 has a CVSS base score of 8.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-108157?
A fix for CVE-2026-108157 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-108157 are linked in the Vendor Advisories panel on this page.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-108157
Is Your Infrastructure Affected by CVE-2026-108157?
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