CVE-2026-82582Network attack vector

Authenticated file disclosure via unfiltered record lookup

Published Sep 10, 2026 · Updated Sep 10, 2026

Authorization bypass in SHIRASAGI 1.20.2 and earlier allows remote authenticated users to retrieve unauthorized groupware shared files. Gws::CrudFilter set_item looks up params[:id] within the site-scoped model without first filtering records through allow(:read). A valid low-privilege session and a directly specified shared-file ID are required; impact is limited to reading files inaccessible to that account.

CVSS severity5.3
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

Authorization bypass in SHIRASAGI 1.20.2 and earlier allows remote authenticated users to retrieve unauthorized groupware shared files. Gws::CrudFilter set_item looks up params[:id] within the site-scoped model without first filtering records through allow(:read). A valid low-privilege session and a directly specified shared-file ID are required; impact is limited to reading files inaccessible to that account.

The record

CVE
CVE-2026-82582
Published
Sep 10, 2026
Updated
Sep 10, 2026
Vendor
SHIRASAGI Project
Product
SHIRASAGI
Classifications
CWE-639, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 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 <=v1.20.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

SHIRASAGI Project · SHIRASAGIversion=0 <=v1.20.2

Published CVSS scores

5.3JPCERT/CCCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
4.3JPCERT/CCCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1213Data from Information Repositories

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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