Vulnerability in indico (CVE-2026-28352)
Summary
Vulnerability in indico (CVE-2026-28352). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 3.3.11 or later.
Original description
The description as published by the source.
Impact
The API endpoint used to manage event series is missing an access check, allowing unauthenticated/unauthorized access to this endpoint.
The impact of this is limited to:
- Getting the metadata (title, category chain, start/end date) for events in an existing series
- Deleting an existing event series: This just removes the series metadata, ie (if enabled) the links between events in the same series and the lecture series number in the event title
- Modifying an existing event series: Just like for deleting, it would only allow to toggle the metadata display. It could also be used to set an event title pattern for the series, but this is only used when cloning an event from that series.
That this vulnerability does NOT allow unauthorized access to events (beyond the basic metadata mentioned above), nor any kind of tampering with user-visible data in events.
Patches
Developers should to update to Indico 3.3.11 as soon as possible.
See the docs for instructions on how to update.
Workarounds
- Developers can configure their webserver to restrict access to the series management API endpoint
For more information
If there are any questions or comments about this advisory:
- Open a thread in our forum
- Email Indico privately at indico-team@cern.ch
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
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-2026-28352 has been found in indico.
Risk of unauthorized operations or information disclosure.
What to do: upgrade indico to 3.3.11 or later.
If unsure, ask your IT team or search "indico CVE-2026-28352" on the vendor's site.
CVE-2026-28352 (indico) — CWE-306
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: 3.3.11 — apply immediately
Workaround: - Developers can configure their webserver to restrict access to the series management API endpoint
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-306) exists in indico.
Check the vendor advisory for the affected versions of indico.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to 3.3.11.
Workaround: - Developers can configure their webserver to restrict access to the series management API endpoint
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'indico' . 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 'indico' . | 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
indico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
- Developers can configure their webserver to restrict access to the series management API endpointパッチが適用されるまでの応急処置として、- Developers can configure their webserver to restrict access to the series management API endpoint 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 indico to 3.3.11ステージング環境で 3.3.11 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
- advisory nvd.nist.gov
- package github.com
- web github.com
- web github.com