CVE-2025-51591

| EUVD-2025-21134 LOW
2025-07-11 [email protected]
3.7
CVSS 3.1

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

4
Patch Released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 16, 2026 - 08:17 vuln.today
EUVD ID Assigned
Mar 16, 2026 - 08:17 euvd
EUVD-2025-21134
CVE Published
Jul 11, 2025 - 14:15 nvd
LOW 3.7

Tags

SSRF Ubuntu Debian

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.

Analysis

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.

Technical Context

Server-Side Request Forgery allows an attacker to induce the server to make HTTP requests to arbitrary destinations, including internal services. This vulnerability is classified as Server-Side Request Forgery (SSRF) (CWE-918).

Affected Products

Affected: JGM Pandoc v3

Remediation

Validate and whitelist allowed URLs and IP ranges. Block requests to internal/private IP ranges. Use network segmentation to limit server-side request scope.

Priority Score

19
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +18
POC: 0

Vendor Status

Ubuntu

Priority: Medium
pandoc
Release Status Version
trusty needs-triage -
xenial needs-triage -
bionic needs-triage -
focal needs-triage -
jammy needs-triage -
noble needs-triage -
upstream needs-triage -
plucky ignored end of life, was needs-triage
questing needs-triage -

Debian

pandoc
Release Status Fixed Version Urgency
bullseye vulnerable 2.9.2.1-1+deb11u1 -
bookworm vulnerable 2.17.1.1-2~deb12u1 -
trixie vulnerable 3.1.11.1+ds-2 -
forky vulnerable 3.7.0.2+ds-1 -
sid vulnerable 3.9-1 -
(unstable) fixed (unfixed) unimportant

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CVE-2025-51591 vulnerability details – vuln.today
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