CVE-2026-82311 Vulnerability Analysis & Exploit Details

CVE-2026-82311
Vulnerability Scoring

9.8
/10
Critical Risk

As a catastrophic security flaw, CVE-2026-82311 has severe implications, demanding immediate intervention.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2026-82311 Details

Status: Analyzed

Last updated: 🕑 18 Sep 2026, 14:28 UTC
Originally published on: 🕘 16 Sep 2026, 09:17 UTC

Time between publication and last update: 2 days

CVSS Release: version 3

CVSS3 Source

134c704f-9b21-4f2e-91b3-4a467353bcc0

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2026-82311 Vulnerability Summary

CVE-2026-82311: Apache Airflow FAB provider: resetting a user's password does not delete that user's existing database-backed sessions, despite documented behaviour that it does. The cleanup compares the string identifier Flask-Login stores in the session against the user's integer database identifier, so the comparison never matches and no session is removed. An attacker who already holds a copy of the victim's session cookie keeps access as that user after the password change, so the reset does not evict them. Affects deployments using the FAB auth manager with `[fab] session_backend=database`. The trigger is an administrator (or the user) running the supported password-reset command as a containment action after a session cookie has been compromised; the secure-cookie backend is out of scope, as it documents that it cannot centrally delete sessions. apache-airflow-providers-fab 3.9.0 also fixes CVE-2026-86462, a second, independent route to the same outcome via the Admin user-edit endpoint; a single upgrade closes both. Users of apache-airflow-providers-fab are recommended to upgrade to version 3.9.0 or later, which compares the identifiers consistently.

Assessing the Risk of CVE-2026-82311

Access Complexity Graph

The exploitability of CVE-2026-82311 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2026-82311

With low attack complexity and no required privileges, CVE-2026-82311 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2026-82311, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2026-82311, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: High
    Exploiting CVE-2026-82311 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: High
    CVE-2026-82311 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
  • Availability: High
    CVE-2026-82311 can disrupt system operations, potentially causing complete denial of service (DoS).

CVE-2026-82311 References

External References

CWE Common Weakness Enumeration

CWE-613

Vulnerable Configurations

  • cpe:2.3:a:apache:apache-airflow-providers-fab:2.4.2:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:2.4.2:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:2.4.2:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:2.4.2:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:2.4.3:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:2.4.3:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:2.4.3:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:2.4.3:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:2.4.4:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:2.4.4:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:2.4.4:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:2.4.4:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.0.0:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.0.0:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.0.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.0.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.0.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.0.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.0.1:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.0.1:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.0.1:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.0.1:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.0.2:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.0.2:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.0.2:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.0.2:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.0.3:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.0.3:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.0.3:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.0.3:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.1.0:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.1.0:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.1.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.1.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.1.1:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.1.1:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.1.1:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.1.1:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.1.2:*:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.1.2:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.1.2:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.1.2:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.2.0:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.2.0:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.2.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.2.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.3.0:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.3.0:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.3.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.3.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.4.0:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.4.0:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.4.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.4.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.5.0:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.5.0:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.5.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.5.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.0:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.0:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.1:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.1:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.1:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.1:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.2:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.2:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.2:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.2:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.3:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.3:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.3:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.3:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.4:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.4:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.4:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.4:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.5:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.5:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.5:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.6.5:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.7.0:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.7.0:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.7.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.7.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.7.1:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.7.1:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.7.1:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.7.1:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.7.2:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.7.2:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.7.2:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.7.2:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.7.3:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.7.3:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.7.3:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.7.3:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.8.0:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.8.0:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.8.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.8.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.8.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.8.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.8.1:-:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.8.1:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.8.1:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.8.1:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:apache-airflow-providers-fab:3.8.1:rc2:*:*:*:*:*:*
    cpe:2.3:a:apache:apache-airflow-providers-fab:3.8.1:rc2:*:*:*:*:*:*

Protect Your Infrastructure against CVE-2026-82311: Combat Critical CVE Threats

Stay updated with real-time CVE vulnerabilities and take action to secure your systems. Enhance your cybersecurity posture with the latest threat intelligence and mitigation techniques. Develop the skills necessary to defend against CVEs and secure critical infrastructures. Join the top cybersecurity professionals safeguarding today's infrastructures.

Other 5 Recently Published CVEs Vulnerabilities

  • CVE-2026-95512 – A flaw was found in FreeType, specifically within its CID font loader. A remote attacker could exploit this vulnerability by tricking a user into o...
  • CVE-2026-91784 – cjbassi/gotop is vulnerable to local argument injection via process termination functionality. The process name is passed directly to pkill without...
  • CVE-2026-80464 – Server-Side request forgery (SSRF) vulnerability in HAVELSAN Inc. Sef - AI Chatbot Platform allows Server Side Request Forgery. This issue affects...
  • CVE-2026-80443 – Improper certificate validation vulnerability in HAVELSAN Inc. Sef - AI Chatbot Platform allows Adversary in the Middle (AiTM). This issue affects...
  • CVE-2026-80337 – Missing Authorization vulnerability in HAVELSAN Inc. Sef - AI Chatbot Platform allows Accessing Functionality Not Properly Constrained by ACLs. Th...