CVE-2023-47634

Decidim has race condition in Endorsements

LOW
3.1
CVSS Score
Published: February 20, 2024 at 04:37 PM UTC
Updated: June 17, 2026 at 06:33 AM UTC
1 product affected across 1 vendorDecidim

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Severity
LOW3.1
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

Decidim is a participatory democracy framework. Starting in version 0.10.0 and prior to versions 0.26.9, 0.27.5, and 0.28.0, a race condition in the endorsement of resources (for instance, a proposal) allows a user to make more than once endorsement. To exploit this vulnerability, the request to set an endorsement must be sent several times in parallel. Versions 0.26.9, 0.27.5, and 0.28.0 contain a patch for this issue. As a workaround, disable the Endorsement feature in the components.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0.26.9v < 0.27.50.10.0 ≤ v < 0.26.90.27.0 ≤ v < 0.27.5
Affected range stops below 0.26.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 0.27.5, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.1LOWGitHub_M
Attack Vector
NETWORK
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-362

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