CVE-2026-68871: Apache airflow providers yandex Apache Airflow Yandex Lockbox Backend Vulnerability

MODERATE
Advisory Identifier: GHSA-qmrf-jrpr-rjx6
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CVSS 6.5
CWE-639
Published
Advisory Summary

CVE-2026-68871 is a MODERATE (CVSS 6.5) apache airflow yandex lockbox backend vulnerability (CWE-639: Authorization Bypass Through User-Controlled Key) affecting Apache airflow providers yandex libraries in the PyPI ecosystem. The issue involves apache airflow yandex lockbox backend allows cross-team secret disclosure. Remediation is available by upgrading affected packages to version 4.5.1.

CVE-2026-68871 at a Glance

CVE Identifier CVE-2026-68871
GHSA Identifier GHSA-qmrf-jrpr-rjx6
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-639: Authorization Bypass Through User-Controlled Key
Affected Product Apache airflow providers yandex
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 6.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2026-68871

To remediate this vulnerability, upgrade all affected Apache airflow providers yandex dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

apache-airflow-providers-yandex fixed: 4.5.1 
pip install apache-airflow-providers-yandex>=4.5.1
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show apache-airflow-providers-yandex

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-68871, inspect your installed packages using pip:

pip show apache-airflow-providers-yandex

Analyze the terminal output to locate any version of Apache airflow providers yandex in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.5.1), your application is affected.

Note: The pip show apache-airflow-providers-yandex command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-639: Authorization Bypass Through User-Controlled Key, where the system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. In Apache airflow providers yandex, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

The Yandex Lockbox secrets backend in Apache Airflow's Yandex provider resolved a team-scoped Connection or Variable id through the team-agnostic lookup when the team-scoped lookup missed. In a deployment running multi-team mode with this backend, a caller in one team could resolve a secret belonging to another team by supplying an id that spells out that team's namespace, obtaining its credentials in full. No unusual configuration is required beyond enabling multi-team mode and using this backend. Users are advised to upgrade to apache-airflow-providers-yandex 4.5.1 or later, which refuses the team-agnostic fall-through for an id that could name a team namespace.

CVE-2026-68871 Affected Apache airflow providers yandex Versions

1 component(s)
Fixed Versions:
4.5.1
Product / Package Ecosystem Affected Versions Fixed Version
apache-airflow-providers-yandex
pypi/apache-airflow-providers-yandex
PyPI
< 4.5.1
4.5.1

References

NVD — CVE-2026-68871 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-68871
Apache airflow providers yandex Source Repository REPOSITORY
https://github.com/apache/airflow/pull/70877
Security Fix Commit FIX COMMIT
https://github.com/apache/airflow/commit/0d877a1a7680d779d3e8d24cf1bd50b0af1fc8d7
Apache airflow providers yandex Source Repository REPOSITORY
https://github.com/apache/airflow
Apache airflow providers yandex Release RELEASE
https://github.com/apache/airflow/releases/tag/providers-yandex/4.5.1
Apache airflow providers yandex Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow-providers-yandex/PYSEC-2026-3715.yaml
lists.apache.org/thread/jlj9tv085txk... WEB
https://lists.apache.org/thread/jlj9tv085txk4t0j029mvh43mz89o63c
Apache airflow providers yandex Security Information SECURITY
http://www.openwall.com/lists/oss-security/2026/08/10/5

Frequently Asked Questions

What is CVE-2026-68871?
CVE-2026-68871 is a security vulnerability in Apache airflow providers yandex involving Apache Airflow Yandex Lockbox backend allows cross-team secret disclosure under CWE-639: Authorization Bypass Through User-Controlled Key.
Which Apache airflow providers yandex versions are affected?
Affected versions include releases prior to 4.5.1 across affected packages: apache-airflow-providers-yandex.
What version fixes CVE-2026-68871?
Upgrading to 4.5.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is apache-airflow-providers-yandex affected?
Yes, apache-airflow-providers-yandex is affected in releases prior to 4.5.1. Upgrade your dependency to 4.5.1 or later.
What is the CVSS score of CVE-2026-68871?
CVE-2026-68871 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2026-68871?
CVE-2026-68871 is classified under CWE-639: Authorization Bypass Through User-Controlled Key (The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.).
How can I check PyPI dependencies for CVE-2026-68871?
Run the dependency tree command: 'pip show apache-airflow-providers-yandex'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-qmrf-jrpr-rjx6",
  "modified" : "2026-10-02T23:11:39Z",
  "published" : "2026-08-10T21:32:02Z",
  "aliases" : [ "CVE-2026-68871" ],
  "summary" : "Apache Airflow Yandex Lockbox backend allows cross-team secret disclosure",
  "details" : "The Yandex Lockbox secrets backend in Apache Airflow's Yandex provider resolved a team-scoped Connection or Variable id through the team-agnostic lookup when the team-scoped lookup missed. In a deployment running multi-team mode with this backend, a caller in one team could resolve a secret belonging to another team by supplying an id that spells out that team's namespace, obtaining its credentials in full. No unusual configuration is required beyond enabling multi-team mode and using this backend. Users are advised to upgrade to apache-airflow-providers-yandex 4.5.1 or later, which refuses the team-agnostic fall-through for an id that could name a team namespace.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "apache-airflow-providers-yandex"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.5.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-68871"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/airflow/pull/70877"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/airflow/commit/0d877a1a7680d779d3e8d24cf1bd50b0af1fc8d7"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/apache/airflow"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/airflow/releases/tag/providers-yandex/4.5.1"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow-providers-yandex/PYSEC-2026-3715.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://lists.apache.org/thread/jlj9tv085txk4t0j029mvh43mz89o63c"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2026/08/10/5"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-639" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-10-02T23:11:39Z",
    "nvd_published_at" : "2026-08-10T19:17:30Z"
  }
}