FKIE_CVE-2026-40869

Vulnerability from fkie_nvd - Published: 2026-04-21 20:17 - Updated: 2026-04-23 16:08
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Summary
Decidim is a participatory democracy framework. Starting in version 0.19.0 and prior to versions 0.30.5 and 0.31.1, a vulnerability allows any registered and authenticated user to accept or reject any amendments. The impact is on any users who have created proposals where the amendments feature is enabled. This also elevates the user accepting the amendment as the author of the original proposal as people amending proposals are provided coauthorship on the coauthorable resources. Versions 0.30.5 and 0.31.1 fix the issue. As a workaround, disable amendment reactions for the amendable component (e.g. proposals).
References
security-advisories@github.comhttps://github.com/decidim/decidim/commit/1b99136a1c7aa02616a0b54a6ab88d12907a57a9Patch
security-advisories@github.comhttps://github.com/decidim/decidim/security/advisories/GHSA-w5xj-99cg-rccmMitigation, Vendor Advisory, Patch
Impacted products
Vendor Product Version
decidim decidim *
decidim decidim *
To clipboard 

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  "id": "CVE-2026-40869",
  "lastModified": "2026-04-23T16:08:50.607",
  "metrics": {
    "cvssMetricV31": [
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  "published": "2026-04-21T20:17:00.207",
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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