CVE-2026-108554

MEDIUM 5.3

PDFMathTranslate through 1.9.11 SSRF via Gradio Web GUI Link Input

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-918
Vendor	pdfmathtranslate
Product	pdfmathtranslate
Published	Oct 10, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Affected Versions

PDFMathTranslate / PDFMathTranslate

0 ≤ 1.9.11

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/PDFMathTranslate/PDFMathTranslate/issues/1188 github.com: https://github.com/PDFMathTranslate/PDFMathTranslate github.com: https://github.com/PDFMathTranslate/PDFMathTranslate/blob/0f0618d3303d064d97e7adb77557b21236c6cee0/pdf2zh/gui.py#L149-L179 github.com: https://github.com/PDFMathTranslate/PDFMathTranslate/blob/0f0618d3303d064d97e7adb77557b21236c6cee0/pdf2zh/gui.py#L257-L269 vulncheck.com: https://www.vulncheck.com/advisories/pdfmathtranslate-through-1.9.11-ssrf-via-gradio-web-gui-link-input

Credits

George Chen