A Server-Side Request Forgery (SSRF) in JGM Pandoc v3.6.4 allows attackers to gain access…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Deferred Red Hat: fix deferred
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-918 and the CVSS impact.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2025-51591
- 2026-10-03 Alias added: GHSA-mcv3-ch54-xqfh
References
Other 7
- https://github.com/RealestName/Vulnerability-Research/tree/main/CVE-2025-51591
- https://github.com/jgm/pandoc/issues/8874
- https://github.com/jgm/pandoc/issues/10682
- https://github.com/jgm/pandoc/discussions/11200
- https://github.com/jgm/pandoc/issues/11261
- https://github.com/jgm/pandoc/pull/11262
- https://www.wiz.io/blog/imds-anomaly-hunting-zero-day
Sources
- CVE-2025-51591 · CVE Program
- CVE-2025-51591 · NVD
- FIRST EPSS
- GHSA-mcv3-ch54-xqfh · GitHub Advisory Database · CC BY 4.0
- CVE-2025-51591 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences