High severity · published Aug 25, 2026
CVE-2026-55528
praisonaiagents: AgentServer declares auth_token but never enforces it on any route (CWE-862)
8.2
CVSS
0.5%
EPSS
No
On KEV
Description
PraisonAI is a multi-agent teams system. Prior to praisonaiagents 1.6.58, AgentServer exposes ServerConfig.auth_token but AgentServer._create_app does not check it on any route. A remote caller can subscribe, publish, and perform other actions without a valid bearer token or X-Auth-Token even when authentication is configured. This issue is fixed in version 1.6.58.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PR
PraisonAI · MervinPraison
< 4.6.58 · source: vendor
PR
praisonaiagents · MervinPraison
< 1.6.58 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-55528
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-55528
github.com
https://github.com/MervinPraison/PraisonAI/commit/2f9677abb2ea68eab864ee8b6a828fd0141612e1
github.com
https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.58
github.com
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-7g3p-92qq-8wvh
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