Critical Alert 2 Active Exploits Detected Today

CVE-2026-72530 TrueConf Server Code Injection Vulnerability →
CVE-2026-72529 TrueConf Server Missing Authentication for Critical Function Vulnerability →
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August 21, 2026

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CVE-2026-18165NVD

Vulnerability Summary

@fastify/oauth2 is an OAuth 2.0 plugin for Fastify. In versions from 7.2.0 up to but not including 8.3.0, the plugin validates the OAuth state, and with PKCE the code verifier, by comparing the callback query parameter against an unprefixed, predictable cookie, with no server-side binding to the browser that began the flow. Any party able to write a cookie for the application's host, such as a sibling subdomain under the same registrable domain, can plant matching state and verifier cookies and complete an attacker-owned OAuth flow inside a victim's browser, silently signing the victim in to the attacker's account (login CSRF). It does not expose the victim's own account, credentials, or tokens. The issue is fixed in @fastify/oauth2 8.3.0, which adds an opt-in hostPrefixedCookies option. Users should upgrade to 8.3.0 and enable it, or bind state to a server-side session.
Severity Level
MEDIUM(4.2)
Published Date
Aug 15, 2026
Last Modified
Aug 17, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.10%Probability
Root Weakness (CWE)
The web application does not sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.
CVSS v3.1 Base Metrics
Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
ConfidentialityLow
IntegrityLow
AvailabilityNone