Is CVE-2026-82582 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-82582 being exploited in the wild.

How severe is CVE-2026-82582?

Medium severity, with a CVSS score of 4.3, published 10 September 2026.

Which products and versions are affected?

SHIRASAGI Project SHIRASAGI v1.20.2 and earlier.

Is there a fix for CVE-2026-82582?

A patch was published on 2026-09-10: Fixed in v1.21.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-82582 attacked?

It is attacked over the network.

Am I affected by CVE-2026-82582?

Check whether you run SHIRASAGI Project SHIRASAGI at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-82582: SHIRASAGI authorization bypass in shared files

CVE-2026-82582 · Severity: medium · CVSS 4.3 · Published 2026-09-10

SHIRASAGI is a content management and groupware system used by organizations for managing websites and shared documents. An authorization bypass vulnerability allows attackers to directly download files from the shared file feature that they should not have access to, potentially exposing sensitive organizational documents and data.

Technologies: SHIRASAGI Project SHIRASAGI. Vendors: SHIRASAGI Project.

Quick answers

Is CVE-2026-82582 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-82582 being exploited in the wild.
How severe is CVE-2026-82582?: Medium severity, with a CVSS score of 4.3, published 10 September 2026.
Which products and versions are affected?: SHIRASAGI Project SHIRASAGI v1.20.2 and earlier.
Is there a fix for CVE-2026-82582?: A patch was published on 2026-09-10: Fixed in v1.21.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-82582 attacked?: It is attacked over the network.
Am I affected by CVE-2026-82582?: Check whether you run SHIRASAGI Project SHIRASAGI at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is an authorization bypass (CWE-639) in SHIRASAGI's shared file feature where access controls are not properly enforced on file downloads. By directly specifying a file ID in a download request, an unauthenticated or unauthorized attacker can bypass access checks and retrieve files they should not be permitted to access. The vulnerability requires network access to the groupware system but no authentication or special preconditions. The attack vector is straightforward parameter manipulation. SHIRASAGI v1.20.2 and earlier are affected; the issue is fixed in v1.21.0.

Affected products

SHIRASAGI Project SHIRASAGI v1.20.2 and earlier

Timeline

2026-09-10: disclosed
2026-09-10: patched: Fixed in v1.21.0

References

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