CVE-2026-63445Network attack vector

Authenticated file disclosure via unvalidated project paths

Published Sep 18, 2026 · Updated Sep 18, 2026

Path traversal in Perses before 0.54.0-rc.0 allows remote authenticated users to read server files through list endpoints. List handlers bind the request-controlled project query parameter into a resource Query without ValidateID, then use it to select file-system database paths. Exploitation requires an authenticated account and the file-system database, and exposes readable YAML or JSON files plus other file-backed project resources.

CVSS severity7.1
High
EPSS probability0.56%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Perses before 0.54.0-rc.0 allows remote authenticated users to read server files through list endpoints. List handlers bind the request-controlled project query parameter into a resource Query without ValidateID, then use it to select file-system database paths. Exploitation requires an authenticated account and the file-system database, and exposes readable YAML or JSON files plus other file-backed project resources.

The record

CVE
CVE-2026-63445
Published
Sep 18, 2026
Updated
Sep 18, 2026
Vendor
Perses
Product
Perses
Classifications
CWE-22, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 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=< 0.54.0-rc.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Perses · Persesversion=< 0.54.0-rc.0

Published CVSS scores

7.1GitHub_MCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 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')
T1005Data from Local System

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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