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  4. CVE 2026 25917 apache airflow api extra links triggers xcom
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Back to active CVEs
High · CVSS 7.2CVE-2026-25917GHSA-6FFJ-2WG2-W45J

Apache Airflow: API extra-links triggers XCom deserialization/class instantiation (Airflow 3.1.5)CVE-2026-25917

Answer in brief

CVE-2026-25917 records a High severity (CVSS 7.2) vulnerability in Apache Airflow: API extra-links triggers XCom deserialization/class instantiation (Airflow 3.1.5). The current sources do not mark it as known exploited. The current feed maps Apache Software Foundation/apache-airflow (generic), Apache Software Foundation/apache-airflow-core (generic), apache-airflow-core (pip). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Apr 18, 2026Updated Nov 3, 2026Source checked Nov 3, 2026First seen by HOL Jun 11, 2026Material review Nov 3, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.2
Exploitation
Not marked as known exploited
Affected software
4 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 7.2. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Apache Software Foundation/apache-airflow (generic), Apache Software Foundation/apache-airflow-core (generic), apache-airflow-core (pip). Check affected ranges and fixed versions before updating.

Affected products and reported versions
ProductAffected versionsFixed versions
cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*Not reportedNot reported
Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Apache Software Foundation/apache-airflowgeneric>=0 <3.0.03.0.0
Apache Software Foundation/apache-airflow-coregeneric>=3.0.0 <3.2.03.2.0
apache-airflow-corepip<3.2.03.2.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Apache Software Foundation/apache-airflow, Apache Software Foundation/apache-airflow-core, apache-airflow-core.
  2. 2Review the reported fix. Update Apache Software Foundation/apache-airflow to 3.0.0; Apache Software Foundation/apache-airflow-core to 3.2.0; apache-airflow-core to 3.2.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Apr 18, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 3, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Jun 11, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • Source referencelists.apache.org
  • Source referenceopenwall.com
  • NVD vulnerability recordnvd.nist.gov
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source description

Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low. Users are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • labbench before 0.46.1 Deserialization of Untrusted Data via read() Pickle Auto-DispatchAlso CWE-502

Record context

Vulnerability class
Deserialization
EPSS
Not reported
CWE IDs
CWE-502
Source
CVE List V5
Source checked
Nov 3, 2026
References
6 linked sources
Open source record