# CVE-2026-112178: MISP access control flaw in proposal visibility logic

Source: https://junglewise.ai/threats/cve-2026-112178-misp-contains-an-access-control-flaw-in-the-proposal-shadow  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-19. Updated: 2026-10-19  
License: CC BY 4.0 with a link back

CVE-2026-112178 · Severity: info · Published 2026-10-19

MISP is a threat intelligence platform used to share and collaborate on security incident data. An access control flaw in the proposal (shadow attribute) visibility logic allows users to view proposed changes to security data that they should not have access to based on distribution restrictions, and prevents organizations from viewing their own proposed changes. This could expose sensitive security intelligence to unauthorized parties.

Technologies: [Misp](https://junglewise.ai/threats/technologies/misp). Vendors: [Misp](https://junglewise.ai/threats/vendors/misp).

## Quick answers

**Is CVE-2026-112178 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-112178 being exploited in the wild.

**How severe is CVE-2026-112178?** Informational severity, published 19 October 2026.

**Which products and versions are affected?** Misp before 2.5.48.

**Is there a fix for CVE-2026-112178?** Yes: fixed in 2.5.48. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-112178 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-112178?** Check whether you run Misp 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.

## How to fix

- Fixed in 2.5.48

## Technical details

The vulnerability is an authorization bypass in the proposal ACL logic within the ShadowAttribute model. The flaw accepts any attribute or object carrying one of the user's sharing groups without verifying the distribution level (levels 1-3 should restrict visibility to distributions 4+), and incorrectly denies the owning organization access to proposals on its own organization-only attributes. An authenticated user in a sharing group can view proposals they should not have access to based on distribution restrictions.

## Affected products

- MISP MISP before 2.5.48

## Timeline

- 2026-10-19: disclosed

## References

- [https://github.com/MISP/MISP/commit/9c5af321f](https://github.com/MISP/MISP/commit/9c5af321f)

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