MediumCVE-2026-68872

    Apache Airflow Amazon provider: Authorization Bypass Through User-Controlled Key (CVE-2026-68872)

    Published Last modified Sources: CVE.org, OSV, BSI

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    What is affected, what to do

    The AWS Systems Manager Parameter Store and Secrets Manager backends in Apache Airflow's Amazon 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 either 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.

    Update Apache Airflow Amazon provider to version 9.34.0.

    Affected
    • Apache Airflow Amazon provider lt *..9.34.0
    Fixed in
    • Apache Airflow Amazon provider 9.34.0

    Not sure whether and how you are affected? Ask a question about this vulnerability

    Metrics

    6.5

    Priority

    XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.

    Source: Vendor (CNA), CVSS v3

    6.5

    CVSS v3

    Severity Medium on the scale from 0 to 10.

    Source: CVE.org, OSV, BSI

    0.6 %

    EPSS score

    Low — model estimates < 1% exploitation likelihood.

    Source: FIRST EPSS, percentile 48.5

    Show all metrics
    Severity
    Medium
    Priority (0–325)

    The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?

    Read in glossary
    73.77 Methodology
    Exploit maturity

    An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.

    Read in glossary
    no public PoC known
    XIEM Effective CVSS

    XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command.

    Read in glossary
    6.5 Methodology
    CVSS v3

    CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions.

    Read in glossary
    6.5
    EPSS score

    The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“.

    Read in glossary
    0.6 %
    Low — model estimates < 1% exploitation likelihood.
    EPSS percentile

    The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking.

    Read in glossary
    48.5
    High — this CVE ranks above the median of all CVEs scored today (rank ≥ 36%).
    KEV status

    The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.

    Read in glossary
    —
    Published
    CISA assessment (SSVC)
    Exploitation: none known · not automatable · Technical impact: partial
    Source: CISA Vulnrichment, as of 11 August 2026
    CWE

    CWE is a catalogue of typical weakness types in software and hardware — such as flawed input validation, unsafe memory handling or poor authentication. Where a CVE names a concrete vulnerability in a concrete product, a CWE describes the underlying class of defect.

    Read in glossary
    CWE-639

    Detection rules

    No NEOSEC detection rule is available for this vulnerability yet.

    Classification under NIS2 and CRA

    Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

    NIS2

    NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.

    Read in glossary
    Handle the vulnerability in regular vulnerability handling under Art. 21(2)(e) NIS2.
    CRA

    The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.

    Read in glossary
    From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
    ISO/IEC 27001

    ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.

    Read in glossary
    Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

    Description

    The AWS Systems Manager Parameter Store and Secrets Manager backends in Apache Airflow's Amazon 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 either 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 one of these backends. Users are advised to upgrade to apache-airflow-providers-amazon 9.34.0 or later, which refuses the team-agnostic fall-through for an id that could name a team namespace.

    Source: cvelistv5, NVD (NIST), OSV (Open Source Vulnerabilities), BSI CSAF, BSI WID Portal

    Affected products

    The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

    Affected products
    Affected versionsFixed in
    Apache Software FoundationApache Airflow Amazon provider
    • < 9.34.0
    • 9.34.0
    apacheapache-airflow-providers-amazon
    • < 9.34.0
    • 9.34.0
    ApacheAirflow Amazon provider
    • < 9.34.0
    • 9.34.0
    ApacheAirflow Microsoft Azure provider
    • < 14.1.0
    • 14.1.0
    ApacheAirflow Yandex provider
    • < 4.5.1
    • 4.5.1

    Vendors and products

    Weakness classes (CWE)

    • CWE-639Authorization Bypass Through User-Controlled Key

      Base

      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.

      Entry at MITRE CWE-639

    References & sources

    • github.comapache/airflow/pull/70878Patch, Issue tracking, Patch
    • lists.apache.orgthread/9nd31g40rd2zpgwwymskvjpfq1xnmllgVendor advisory, Mailing list, Vendor advisory
    • openwall.comlists/oss-security/2026/08/10/6Mailing list, Third-party advisory

    Changes to this CVE

    Who changed this CVE and when: NVD (analysis, affected products, CVSS), the CVE publisher (CNA) and additional providers such as CISA (ADP).

    1. Record modifiedApache

      Show 7 original changes
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      Affected versions (publisher)added
      —
      Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/68xxx/CVE-2026-68872.json">CVE-2026-68872</a>
      Referenceadded
      —
      https://github.com/apache/airflow/pull/70878
      Referenceadded
      —
      https://lists.apache.org/thread/9nd31g40rd2zpgwwymskvjpfq1xnmllg
      Referenceremoved
      https://github.com/apache/airflow/pull/70878
      —
      Referenceremoved
      https://lists.apache.org/thread/9nd31g40rd2zpgwwymskvjpfq1xnmllg
      —
      Reference typeremoved
      https://github.com/apache/airflow/pull/70878 Types: Issue Tracking, Patch
      —
      Reference typeremoved
      https://lists.apache.org/thread/9nd31g40rd2zpgwwymskvjpfq1xnmllg Types: Mailing List, Vendor Advisory
      —

      Source identifier: security@apache.org

    2. Record modifiedCVE Program

      Show 3 original changes
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      Referenceadded
      —
      http://www.openwall.com/lists/oss-security/2026/08/10/6
      Referenceremoved
      http://www.openwall.com/lists/oss-security/2026/08/10/6
      —
      Reference typeremoved
      http://www.openwall.com/lists/oss-security/2026/08/10/6 Types: Mailing List, Third Party Advisory
      —

      Source identifier: af854a3a-2127-422b-91ae-364da2661108

    3. Initial analysis by NVDNVD

      Newly listed as affected:
      Show 4 original changes
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      Product configurationadded
      —
      OR *cpe:2.3:a:apache:apache-airflow-providers-amazon:*:*:*:*:*:*:*:* versions up to (excluding) 9.34.0
      Reference typeadded
      —
      Apache Software Foundation: https://github.com/apache/airflow/pull/70878 Types: Issue Tracking, Patch
      Reference typeadded
      —
      Apache Software Foundation: https://lists.apache.org/thread/9nd31g40rd2zpgwwymskvjpfq1xnmllg Types: Mailing List, Vendor Advisory
      Reference typeadded
      —
      CVE: http://www.openwall.com/lists/oss-security/2026/08/10/6 Types: Mailing List, Third Party Advisory

      Source identifier: nvd@nist.gov

    4. Record modifiedCISA ADP

      CVSS V3.1: AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

      CISA assessment (SSVC): exploitation: none known, automatable: no

      Show 2 original changes
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      CVSSadded
      —
      AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
      SSVC assessmentadded
      —
      {"id":"CVE-2026-68872","role":"CISA Coordinator","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"version":"2.0.3","timestamp":"2026-08-11T14:42:45.403413Z"}

      Source identifier: 134c704f-9b21-4f2e-91b3-4a467353bcc0

    5. ReceivedApache

      Weakness type: CWE-639

      Description added or changed

      Show 5 original changes
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      Affected versions (publisher)added
      —
      Apache Airflow Amazon provider
      Descriptionadded
      —
      The AWS Systems Manager Parameter Store and Secrets Manager backends in Apache Airflow's Amazon 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 either 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 one of these backends. Users are advised to upgrade to apache-airflow-providers-amazon 9.34.0 or later, which refuses the team-agnostic fall-through for an id that could name a team namespace.
      Weakness type (CWE)added
      —
      CWE-639
      Referenceadded
      —
      https://github.com/apache/airflow/pull/70878
      Referenceadded
      —
      https://lists.apache.org/thread/9nd31g40rd2zpgwwymskvjpfq1xnmllg

      Source identifier: security@apache.org

    Show one older change

    1. Record modifiedCVE Program

      Show the original change
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      Referenceadded
      —
      http://www.openwall.com/lists/oss-security/2026/08/10/6

      Source identifier: af854a3a-2127-422b-91ae-364da2661108

    2 NVD translations into other languages are hidden.

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