CVE-2026-42080Network attack vector

Arbitrary file write via unchecked output path

Published May 4, 2026 · Updated May 4, 2026

Path traversal in PPTAgent before 1.1.36 allows remote authenticated users to write generated PPTX files outside the workspace. save_generated_slides passes the caller-controlled pptx_path directly to directory creation and file-save operations without resolving it against the workspace. Exploitation requires low-privileged access and user interaction; absolute or traversing paths can overwrite files or create directories writable by the server process.

CVSS severity4.6
Medium
EPSS probability0.20%
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 PPTAgent before 1.1.36 allows remote authenticated users to write generated PPTX files outside the workspace. save_generated_slides passes the caller-controlled pptx_path directly to directory creation and file-save operations without resolving it against the workspace. Exploitation requires low-privileged access and user interaction; absolute or traversing paths can overwrite files or create directories writable by the server process.

The record

CVE
CVE-2026-42080
Published
May 4, 2026
Updated
May 4, 2026
Vendor
Chinese Information Processing Laboratory
Product
PPTAgent
Classifications
CWE-22
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 4, 2026CVE publishedPublication date reported by the CVE source.
  2. May 4, 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=< 418491a9a1c02d9d93194b5973bb58df35cf9d00

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Chinese Information Processing Laboratory · PPTAgentversion=< 418491a9a1c02d9d93194b5973bb58df35cf9d00

Published CVSS scores

4.6GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L

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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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