CVE-2025-51591 Server-side request forgery in n/a
Attackers can exploit SSRF in Pandoc via crafted iframes to access internal infrastructure, mitigated by using sandbox mode or pandoc-server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-51591?
CVE-2025-51591 is a low-severity server-side request forgery vulnerability in n/a, published on 11 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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. Note: Some users have stated that Pandoc by default can retrieve and parse untrusted HTML content which can enable SSRF vulnerabilities. Using the ‘--sandbox’ option or ‘pandoc-server’ can mitigate such vulnerabilities. Using pandoc with an external ‘--pdf-engine’ can also enable SSRF vulnerabilities, such as CVE-2022-35583 in wkhtmltopdf.
Weakness: CWE-918
Which versions are affected by CVE-2025-51591?
How do I fix CVE-2025-51591?
No fix has been published for CVE-2025-51591 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2025-51591 being exploited?
There is no known exploitation of CVE-2025-51591 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as DEBIAN-CVE-2025-51591, GHSA-mcv3-ch54-xqfh, UBUNTU-CVE-2025-51591.