CVE-2026-7315Public exploitNetwork attack vector

Out-of-directory file access via unchecked path resolution

Published Apr 28, 2026 · Updated Apr 28, 2026

Path traversal in E-iceblue Spire.PDF MCP Server 0.1.1 allows remote attackers to read host PDFs or write files outside its PDF directory. get_pdf_path returns absolute paths unchanged and joins relative filepath values to PDF_FILES_PATH without canonicalization or a containment check. Exploitation requires access to the exposed MCP tools and is limited by the service account's filesystem permissions and supported file formats.

CVSS severity7.3
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in E-iceblue Spire.PDF MCP Server 0.1.1 allows remote attackers to read host PDFs or write files outside its PDF directory. get_pdf_path returns absolute paths unchanged and joins relative filepath values to PDF_FILES_PATH without canonicalization or a containment check. Exploitation requires access to the exposed MCP tools and is limited by the service account's filesystem permissions and supported file formats.

The record

CVE
CVE-2026-7315
Published
Apr 28, 2026
Updated
Apr 28, 2026
Vendor
E-iceblue
Product
Spire.PDF MCP Server
Classifications
CWE-22, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

E-iceblue · Spire.PDF MCP Serverversion=0.1.1

Published CVSS scores

7.5VulDBAV:N/AC:L/Au:N/C:P/I:P/A:P
7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
5.5VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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