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CVE-2026-41649

Getoutline Outline broken access control

7.7 HIGHPublic exploitEPSS 0.41%
  1. Published28 Apr 2026

Description

Outline is a service that allows for collaborative documentation. The `shares.create` API endpoint starting in version 0.86.0 and prior to version 1.7.0 has an insecure direct object reference.. When both `collectionId` and `documentId` are provided in the request, the authorization logic only checks access to the collection, completely ignoring the document. This allows an authenticated attacker to generate a valid public share link for any document on the platform, including documents belonging to other workspaces. The full document contents can then be retrieved via the `documents.info` endpoint. Version 1.7.0 contains a patch.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Affected products

Getoutline Outline≥ 0.86.0 < 1.7.0

Remediation

Fixed in
Getoutline Outline≥ 1.7.0

References

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Frequently asked

Is CVE-2026-41649 being actively exploited?

CVE-2026-41649 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.41%.

How severe is CVE-2026-41649?

CVE-2026-41649 has a CVSS 3.1 base score of 7.7, rated high. EPSS estimates a 0.41% probability of exploitation.

Which products are affected by CVE-2026-41649?

Affected products include Getoutline Outline.

How do I fix CVE-2026-41649?

Upgrade affected software to a fixed version, for example Getoutline Outline 1.7.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-41649 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.