CVE-2023-36543

mediumpriority · track · 27EPSS 0.016 · 75 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.57% (75th) EPSS

CVSS 6.5 · medium

Is it mine?

5 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-27

Apache Airflow, versions before 2.6.3, has a vulnerability where an authenticated user can use crafted input to make the current request hang. It is recommended to upgrade to a version that is not affected

cvss

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v3.16.5mediumAV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-1333USCWE-1333USCWE-1333USCWE-20US

affected products (5)

Products and version ranges known to be affected.

Apache Software Foundation Apache Airflow0 → 2.6.3enisa_euvdEU
Apache Software Foundation Airflow≤ 2.6.3fstec_bduRU
apache airflow< 2.6.3nvdUScpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*
Bitnami airflow< 2.6.3osvUSpkg:bitnami/airflow
PyPI apache-airflow< 2.6.3osvUSpkg:pypi/apache-airflow

advisories (3)

Vendor and ecosystem advisories describing this.

GHSA-3h4m-m55v-gx4mApache Airflow Improper Input Validation vulnerability2023-07-12ghsa · osvUS
Apache Airflow, versions before 2.6.3, has a vulnerability where an authenticated user can use crafted input to make the current request hang. It is recommended to upgrade to a version that is not affected
BIT-airflow-2023-36543Apache Airflow: ReDoS via dags function2024-03-06vendor · osvUS
Apache Airflow, versions before 2.6.3, has a vulnerability where an authenticated user can use crafted input to make the current request hang. It is recommended to upgrade to a version that is not affected
PYSEC-2023-1062023-07-12vendor · osvUS
Apache Airflow, versions before 2.6.3, has a vulnerability where an authenticated user can use crafted input to make the current request hang. It is recommended to upgrade to a version that is not affected

also known as (8)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv nvd NVD CVE.org MITRE

published 2023-07-12modified 2026-06-17

references (7)

External citations — patches, advisories, analysis.

scry

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