CVE-2026-55498Public exploitNetwork attack vectorHinoki check available

File disclosure via shared-folder symlink escape

Published Oct 14, 2026 · Updated Oct 14, 2026

Path traversal in error311 FileRise before 3.15.0 allows remote attackers to read unshared files through public folder links. FolderModel::resolveFolderPath() resolves shared subpaths against the upload root rather than the original shared folder, allowing symlinks to escape into sibling directories. Exploitation requires a valid share token, enabled subfolder browsing, and an existing symlink to a readable sibling folder; listing, direct download, and ZIP creation disclose its files.

CVSS severity4.8
Medium
EPSS probability0.28%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Path traversal in error311 FileRise before 3.15.0 allows remote attackers to read unshared files through public folder links. FolderModel::resolveFolderPath() resolves shared subpaths against the upload root rather than the original shared folder, allowing symlinks to escape into sibling directories. Exploitation requires a valid share token, enabled subfolder browsing, and an existing symlink to a readable sibling folder; listing, direct download, and ZIP creation disclose its files.

The record

CVE
CVE-2026-55498
Published
Oct 14, 2026
Updated
Oct 14, 2026
Vendor
error311
Product
FileRise
Classifications
CWE-59, T1213
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 14, 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=< 3.15.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

error311 · FileRiseversion=< 3.15.0

Published CVSS scores

4.8error311CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A: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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-59Improper Link Resolution Before File Access ('Link Following')
T1213Data from Information Repositories

Public exploit references

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Technologies

Your stack

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Your stack

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