CVE-2026-45414

Decidim: JWT-backed authentication can be replayed across organizations

Published: Aug 6, 2026Updated: Sep 8, 2026 Sources: CVE List NVDCWE-639

8.5HIGH

Description

Decidim is a participatory democracy framework. Prior to 0.31.5 and in 0.32.0.rc1 before 0.32.0.rc2, JWT-backed API authentication is not bound to the organization selected by the current host, allowing a JWT issued for one tenant to be replayed against another tenant’s API to read participantDetails data and reach the proposal.answer mutation path. This issue is fixed in versions 0.31.5 and 0.32.0.rc2.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:CScope

Changed

Impact

C:HConfidentiality

High

I:LIntegrity

Low

A:NAvailability

None

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Weaknesses

CWE-639 CWE-863

Affected Products

decidim

oss-projectaka decidim framework

decidimOn-prem

Enterprise Software / collaboration-groupware

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Initial Access

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References

https://github.com/decidim/decidim/commit/023e206127c984a501345676e4789b31ddd115a1

github.com

https://github.com/decidim/decidim/commit/226dc94894e6a3c030e4638c8b3441ee7199643c

github.com

https://github.com/decidim/decidim/releases/tag/v0.31.5

github.com

and 2 more references View all →

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