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CVE-2026-23946
Unsafe Deserialization in tendenci (CVE-2026-23946)
Summary
vulnerability in tendenci (CVE-2026-23946). Successful exploitation can lead to full system takeover. Exploitable via ``is_superuser``. Mitigation: upgrade to `15.3.12` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-23946** has been found in tendenci.
Attackers can target a specific entry point like ``is_superuser`` over the network to misuse the product.
Successful exploitation can lead to full system takeover. CVSS score: ?/10.
What to do: upgrade tendenci to **15.3.12** or later.
If unsure, ask your IT team or search "tendenci CVE-2026-23946" on the vendor's site.
CVE-2026-23946 (tendenci) — CWE-502 /
Attack vector: remote (network-reachable)
Attack surface: `is_superuser` / `is_staff`
Patched: `15.3.12` — apply immediately
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.
❓ What is the problem
**unsafe deserialization** (CWE-502) exists in tendenci. Attackers reach the vulnerable code path via ``is_superuser`` without authentication.
📍 Affected scope
tendenci — . Attack surface: `is_superuser` / `is_staff`.
🔥 Severity
Severity: ?. Successful exploitation can lead to full system takeover
🔧 How to fix
Update to **15.3.12**.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'tendenci' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'tendenci' . | 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 `tendenci` を grep し、稼働しているサービス・バージョンを把握する。
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6Apply patch patch
Upgrade tendenci to 15.3.12ステージング環境で 15.3.12 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と、Step 3 で見つけた異常検知の続報チェックを含めること。
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7Post-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 Step 3 と同じログクエリでアラート再発が無いか継続監視。
Affected packages
PyPI
tendenci
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"15.3.12"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2020-14942
- advisory https://nvd.nist.gov/vuln/detail/CVE-2026-23946
- advisory https://github.com/advisories/GHSA-jqmc-fxxp-r589
- advisory https://github.com/advisories/GHSA-339m-4qw5-j2g3
- package https://github.com/tendenci/tendenci
- package https://pypi.org/project/tendenci
- web https://github.com/tendenci/tendenci/security/advisories/GHSA-339m-4qw5-j2g3
- web https://github.com/tendenci/tendenci/issues/867
- web https://github.com/tendenci/tendenci/commit/23d9fd85ab7654e9c83cfc86cb4175c0bd7a77f1
- web https://github.com/tendenci/tendenci/commit/2ff0a457614944a1b417081c543ea4c5bb95d636
- web https://github.com/tendenci/tendenci/commit/63e1b84a5b163466d1d8d811d35e7021a7ca0d0e
- web https://docs.python.org/3/library/pickle.html#restricting-globals
- web https://github.com/tendenci/tendenci/releases/tag/v15.3.12