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Vulnerability details: VCID-xd5g-jkrd-67cr
Vulnerability ID VCID-xd5g-jkrd-67cr
Aliases CVE-2026-33858
PYSEC-2026-20
Summary 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 resolves this issue.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (0)
There are no known CWE.
System Score Found at
cvssv3.1 8.8 https://github.com/apache/airflow/pull/64148
cvssv3.1 8.8 https://lists.apache.org/thread/1npt3o2x81s0gw9tmfcv4n7p1z9hdmy0
cvssv3.1 8.8 http://www.openwall.com/lists/oss-security/2026/04/13/7
Reference id Reference type URL
https://github.com/apache/airflow/pull/64148
https://lists.apache.org/thread/1npt3o2x81s0gw9tmfcv4n7p1z9hdmy0
http://www.openwall.com/lists/oss-security/2026/04/13/7
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/apache/airflow/pull/64148
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://lists.apache.org/thread/1npt3o2x81s0gw9tmfcv4n7p1z9hdmy0
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at http://www.openwall.com/lists/oss-security/2026/04/13/7
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

No EPSS data available for this vulnerability.

Date Actor Action Source VulnerableCode Version
2026-06-02T04:24:46.752940+00:00 Pypa Importer Import https://github.com/pypa/advisory-database/blob/main/vulns/apache-airflow/PYSEC-2026-20.yaml 38.6.0