Vulnerability in decidim-verifications (CVE-2026-45415)
Summary
Vulnerability in decidim-verifications (CVE-2026-45415). Data can be tampered with by attackers. Mitigation: upgrade to 0.32.0 or later.
Original description
The description as published by the source.
Description
A participant manager can access and modify the CSV census record admin forms.
Technical description
The CSV census admin record-management surface under /admin/csv_census/census_logs does not enforce admin-only authorization before rendering or mutating Decidim::Verifications::CsvDatum.
A participant manager (which can only manage participants) can therefore open the admin forms, create or update census rows, and delete rows directly.
Reproduction steps:
- Sign in a participant admin and open
http://localhost:3000/admin/csv_census/census_logs/new_recordin the browser. Confirm the create form loads even though the session is not a full admin.
Note that normal participant accounts were not able to access the CSV census records which is good.
Impact
Any participant admin can create, alter, or remove CSV census rows, which can corrupt verification data relied on by authorization workflows.
Patches
See https://github.com/decidim/decidim/pull/16674 and https://github.com/decidim/decidim/pull/16703
Workarounds
Disable Organization Census verification method
Reference
OWASP A01:2021 Broken Access Control
Credits
This issue was discovered in a security audit organized by the Decidim Association and made by Radically Open Security against Decidim financed by NGI.
Source: GitHub Security Advisories (Global) NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-45415 has been found in decidim-verifications.
Data can be tampered with by attackers. CVSS score: 6.0/10.
What to do: upgrade decidim-verifications to 0.32.0 or later.
If unsure, ask your IT team or search "decidim-verifications CVE-2026-45415" on the vendor's site.
CVE-2026-45415 (decidim-verifications) — CWE-285 / CVSS v3 6.0
Attack vector: remote (network-reachable) / no user interaction
Patched: 0.32.0 — apply immediately
Workaround: Disable Organization Census verification method
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-285) exists in decidim-verifications.
Check the vendor advisory for the affected versions of decidim-verifications.
Severity: Medium (CVSS 6.0/10). Data can be tampered with by attackers.
Update to 0.32.0.
Workaround: Disable Organization Census verification method
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'decidim-verifications' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'decidim-verifications' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
decidim-verificationsを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply temporary workaround mitigate
Disable Organization Census verification methodパッチが適用されるまでの応急処置として、Disable Organization Census verification method を実施。回避策の副作用 (機能低下) を確認した上で。
-
3Apply patch patch
Upgrade decidim-verifications to 0.32.0ステージング環境で 0.32.0 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
4Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- package github.com
- web github.com
- web github.com
- web github.com
- web github.com