Server-side request forgery in PDFMathTranslate Link input
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.
Summary
PDFMathTranslate (pdf2zh) through 1.9.11 contains a server-side request forgery flaw in its Gradio Web GUI Link input (CWE-918). The translate_file handler passes user-supplied URLs to download_with_limit without scheme or address validation. An unauthenticated remote attacker can make the server fetch arbitrary URLs, reaching internal services and cloud metadata endpoints and retrieving the returned PDFs.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Description from the CNA
PDFMathTranslate (pdf2zh) through 1.9.11 contains a server-side request forgery vulnerability that allows unauthenticated attackers to make the server fetch arbitrary URLs via the Link input. The translate_file handler passes user URLs to download_with_limit without scheme or address validation, letting attackers reach internal services and cloud metadata endpoints and retrieve returned PDFs.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- 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 |
|---|---|---|---|---|---|
| PDFMathTranslate | PDFMathTranslate | up to 1.9.11 | — | No fix listed | CNA |
- PDFMathTranslate VendorPDFMathTranslate Affected up to 1.9.11 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for PDFMathTranslate.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Vendor assessments
Timeline
- 2026-10-11 Threatist record created from CVE-2026-108554
- 2026-10-11 Alias added: GHSA-685q-m24h-8x9g
- 2026-10-11 Priority changed: MEDIUM → LOW
- 2026-10-14 CISA SSVC decision points changed
- 2026-10-14 Priority changed: LOW → HIGH
- 2026-11-06 Affected versions changed · Red Hat
- 2026-11-06 CVSS score added · Red Hat
References
Other 4
- GitHub Issue #1188
- https://github.com/PDFMathTranslate/PDFMathTranslate
- https://github.com/PDFMathTranslate/PDFMathTranslate/blob/0f0618d3303d064d97e7adb77557b21236c6cee0/pdf2zh/gui.py#L149-L179
- https://github.com/PDFMathTranslate/PDFMathTranslate/blob/0f0618d3303d064d97e7adb77557b21236c6cee0/pdf2zh/gui.py#L257-L269
Sources
- CVE-2026-108554 · CVE Program
- CVE-2026-108554 · NVD
- FIRST EPSS
- GHSA-685q-m24h-8x9g · GitHub Advisory Database · CC BY 4.0
- CVE-2026-108554 · 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