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Home / Vulnerability Intelligence / CVE-2026-34953

CVE-2026-34953 - Vulnerability Analysis

CriticalCVSS: 9.1

Last Updated: April 6, 2026

PraisonAI - Authentication Bypass

Published: April 3, 2026Updated: April 6, 2026Remote Exploitable

Overview

PraisonAI < 4.5.97 contains an authentication bypass caused by OAuthManager.validate_token() returning True for any unknown token, letting remote attackers gain full access to tools and agent capabilities, exploit requires sending arbitrary Bearer token.

Severity & Score

Severity: Critical
CVSS Score: 9.1
EPSS Score: 3.0%(Probability of exploitation in next 30 days)

Impact

Remote attackers can gain full access to all registered tools and agent capabilities without valid authentication.

Mitigation

Upgrade to version 4.5.97 or later.

Social Media Activity(2 posts)

TheHackerWire
TheHackerWire
@thehackerwire
Apr 4, 2026

šŸ”“ CVE-2026-34953 - Critical (9.1) PraisonAI is a multi-agent teams system. Prior to version 4.5.97, OAuthManager.validate_token() returns True for any token not found in its internal store, which is empty by default. Any HTTP request to the MCP server with an arbitrary Bearer toke... šŸ”— https://www.thehackerwire.com/vulnerability/CVE-2026-34953/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

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OffSequence
OffSequence
@offseq
Apr 4, 2026

āš ļø CRITICAL vuln in PraisonAI (<4.5.97): CVE-2026-34953 allows any bearer token to bypass auth & gain full access to all agent capabilities. Patch to 4.5.97+ now! No exploits yet. Details: https://radar.offseq.com/threat/cve-2026-34953-cwe-863-incorrect-authorization-in--72e3ef5e #OffSeq #CVE202634953 #infosec #patch

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Details

CVE ID
CVE-2026-34953
Severity
Critical
CVSS Score
9.1
Type
broken_authentication
Status
new
EPSS
3.0%
Social Posts
2

CWE

  • CWE-863

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS Score

3.0%Probability of exploitation in the next 30 days