CVE-2020-26214 — AI Deep Analysis Summary

Q: What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: Alerta < 8.1.0 has an **Auth Bypass** flaw. 📉 **Consequences**: Attackers can log in without credentials, compromising system integrity and data confidentiality.

Q: Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **CWE-287** (Improper Authentication). The flaw occurs when using **LDAP** as the auth provider. An **empty password** bypasses the LDAP server check.

Q: Who is affected? (Versions/Components)

👥 **Affected**: **Alerta** (Python monitoring tool). Specifically versions **prior to 8.1.0**. 📦 **Component**: LDAP Authorization Provider configuration.

Q: What can hackers do? (Privileges/Data)

💀 **Attacker Actions**: Full **Authentication Bypass**. 📂 **Impact**: High Confidentiality & Integrity loss. Hackers gain unauthorized access to the monitoring dashboard and data.

Q: Is exploitation threshold high? (Auth/Config)

⚡ **Threshold**: **LOW**. ⚙️ **Config**: Requires LDAP setup. 🔓 **Auth**: No valid password needed (empty string works). 🌐 **Network**: Remote exploitation possible (AV:N).

Q: Is there a public Exp? (PoC/Wild Exploitation)

🔍 **Exploit**: Yes. Public **PoC** available via **Nuclei** templates. 🌍 **Wild Exploit**: Likely, given the simple nature of the empty password bypass.

Q: How to self-check? (Features/Scanning)

🔎 **Self-Check**: Scan for Alerta instances. 🧪 **Test**: Attempt login with LDAP auth using a **blank/empty password**. 📡 **Tool**: Use Nuclei CVE template for automated detection.

Q: Is it fixed officially? (Patch/Mitigation)

✅ **Fixed**: Yes. Official patch released in **Alerta 8.1.0**. 📝 **Commit**: See GitHub commit `2bfa317`. 🔄 **Action**: Upgrade immediately to v8.1.0+.

Q: What if no patch? (Workaround)

🚧 **Workaround**: If patching is delayed, **disable LDAP** auth temporarily. 🔒 **Alternative**: Switch to a different auth provider or enforce strict LDAP bind policies that reject empty binds.

Q: Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **HIGH**. 🚨 **Priority**: Critical. CVSS Score indicates **High** impact (C:H, I:H). Patch immediately to prevent unauthorized access.

Updated May 08, 2026 CVSS 9.1 · Critical

This is a summary of the AI-generated 10-question deep analysis. The full version (longer answers, follow-up Q&A, related CVEs) requires login. Read the full analysis →

Q1What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: Alerta < 8.1.0 has an **Auth Bypass** flaw. 📉 **Consequences**: Attackers can log in without credentials, compromising system integrity and data confidentiality.

Q2Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **CWE-287** (Improper Authentication). The flaw occurs when using **LDAP** as the auth provider. An **empty password** bypasses the LDAP server check.

Q3Who is affected? (Versions/Components)

👥 **Affected**: **Alerta** (Python monitoring tool). Specifically versions **prior to 8.1.0**. 📦 **Component**: LDAP Authorization Provider configuration.

Q4What can hackers do? (Privileges/Data)

💀 **Attacker Actions**: Full **Authentication Bypass**. 📂 **Impact**: High Confidentiality & Integrity loss. Hackers gain unauthorized access to the monitoring dashboard and data.

Q5Is exploitation threshold high? (Auth/Config)

⚡ **Threshold**: **LOW**. ⚙️ **Config**: Requires LDAP setup. 🔓 **Auth**: No valid password needed (empty string works). 🌐 **Network**: Remote exploitation possible (AV:N).

Q6Is there a public Exp? (PoC/Wild Exploitation)

🔍 **Exploit**: Yes. Public **PoC** available via **Nuclei** templates. 🌍 **Wild Exploit**: Likely, given the simple nature of the empty password bypass.

Q7How to self-check? (Features/Scanning)

🔎 **Self-Check**: Scan for Alerta instances. 🧪 **Test**: Attempt login with LDAP auth using a **blank/empty password**. 📡 **Tool**: Use Nuclei CVE template for automated detection.

Q8Is it fixed officially? (Patch/Mitigation)

✅ **Fixed**: Yes. Official patch released in **Alerta 8.1.0**. 📝 **Commit**: See GitHub commit `2bfa317`. 🔄 **Action**: Upgrade immediately to v8.1.0+.

Q9What if no patch? (Workaround)

🚧 **Workaround**: If patching is delayed, **disable LDAP** auth temporarily. 🔒 **Alternative**: Switch to a different auth provider or enforce strict LDAP bind policies that reject empty binds.

Q10Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **HIGH**. 🚨 **Priority**: Critical. CVSS Score indicates **High** impact (C:H, I:H). Patch immediately to prevent unauthorized access.

Continue exploring

Vulnerability detail Full AI analysis (login) alerta CWE-287