CVE-2026-35606Public exploitNetwork attack vector

Authenticated file disclosure via unchecked resource handler

Published Apr 7, 2026 · Updated Apr 7, 2026

Missing authorization in File Browser before 2.63.1 allows remote authenticated users to read scoped text files through /api/resources. The resourceGetHandler always loads text content and its X-Encoding branch returns raw bytes without checking Perm.Download. An account with download disabled must still have the target file in its authorized scope; the bypass exposes that file's contents but does not bypass path authorization.

CVSS severity5.3
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in File Browser before 2.63.1 allows remote authenticated users to read scoped text files through /api/resources. The resourceGetHandler always loads text content and its X-Encoding branch returns raw bytes without checking Perm.Download. An account with download disabled must still have the target file in its authorized scope; the bypass exposes that file's contents but does not bypass path authorization.

The record

CVE
CVE-2026-35606
Published
Apr 7, 2026
Updated
Apr 7, 2026
Vendor
File Browser Contributors
Product
File Browser
Classifications
CWE-862, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 7, 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=< 2.63.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

File Browser Contributors · File Browserversion=< 2.63.1

Published CVSS scores

5.3GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/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.

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

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1213Data from Information Repositories

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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