CVE-2026-55523: CWE-918: Server-Side Request Forgery (SSRF) in MervinPraison PraisonAI
PraisonAI versions 1.5.128 through 1.6.57 contain a server-side request forgery (SSRF) vulnerability in the web_crawl() function. The vulnerability arises because the function validates only the initially supplied URL but does not revalidate intermediate or final redirect targets when following redirects. This allows an attacker to supply a URL that passes initial checks but redirects to internal or sensitive endpoints, potentially exposing internal network resources. The issue has been fixed in version 1.6.58.
AI Analysis
Technical Summary
The praisonaiagents.tools.web_crawl_tools.web_crawl() function in PraisonAI versions 1.5.128 through 1.6.57 is vulnerable to SSRF due to incomplete validation of URLs after HTTP redirects. Although the initial URL is checked to block loopback and private destinations, the httpx.Client fallback follows redirects without revalidating the destination URLs. An attacker controlling the input URL can exploit this to access internal or cloud metadata endpoints by leveraging redirect chains, bypassing the initial host validation. This vulnerability is a bypass of a previously disclosed SSRF issue (CVE-2026-40160). The vulnerability is fixed in version 1.6.58.
Potential Impact
An attacker able to influence the URL passed to the vulnerable web_crawl() function can cause the server to make HTTP requests to internal network resources or cloud metadata endpoints that are normally inaccessible externally. This can lead to unauthorized information disclosure from internal services. The vulnerability does not require authentication or user interaction and has a high severity score (CVSS 7.7). There are no known exploits in the wild at the time of publication.
Mitigation Recommendations
Upgrade PraisonAI to version 1.6.58 or later, where this SSRF vulnerability has been fixed. Since no official patch or temporary fix is indicated other than the version upgrade, updating to the fixed version is the recommended remediation. Patch status is confirmed by the vendor's versioning information in the advisory.
CVE-2026-55523: CWE-918: Server-Side Request Forgery (SSRF) in MervinPraison PraisonAI
Description
PraisonAI versions 1.5.128 through 1.6.57 contain a server-side request forgery (SSRF) vulnerability in the web_crawl() function. The vulnerability arises because the function validates only the initially supplied URL but does not revalidate intermediate or final redirect targets when following redirects. This allows an attacker to supply a URL that passes initial checks but redirects to internal or sensitive endpoints, potentially exposing internal network resources. The issue has been fixed in version 1.6.58.
CVSS v4.0
Score 7.7high
Affected software
MervinPraison
PraisonAI
pkg:github/mervinpraison/PraisonAIRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The praisonaiagents.tools.web_crawl_tools.web_crawl() function in PraisonAI versions 1.5.128 through 1.6.57 is vulnerable to SSRF due to incomplete validation of URLs after HTTP redirects. Although the initial URL is checked to block loopback and private destinations, the httpx.Client fallback follows redirects without revalidating the destination URLs. An attacker controlling the input URL can exploit this to access internal or cloud metadata endpoints by leveraging redirect chains, bypassing the initial host validation. This vulnerability is a bypass of a previously disclosed SSRF issue (CVE-2026-40160). The vulnerability is fixed in version 1.6.58.
Potential Impact
An attacker able to influence the URL passed to the vulnerable web_crawl() function can cause the server to make HTTP requests to internal network resources or cloud metadata endpoints that are normally inaccessible externally. This can lead to unauthorized information disclosure from internal services. The vulnerability does not require authentication or user interaction and has a high severity score (CVSS 7.7). There are no known exploits in the wild at the time of publication.
Mitigation Recommendations
Upgrade PraisonAI to version 1.6.58 or later, where this SSRF vulnerability has been fixed. Since no official patch or temporary fix is indicated other than the version upgrade, updating to the fixed version is the recommended remediation. Patch status is confirmed by the vendor's versioning information in the advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-16T22:44:22.284Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a739210bf8831d5395f9a99
Added to database: 08/05/2026, 19:42:08 UTC
Last enriched: 08/13/2026, 17:30:10 UTC
Last updated: 09/17/2026, 22:01:36 UTC
Views: 57
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