Detections
Analytics

Echo: apache-airflow: security update to 3.3.1

medium Tenable Cloud Security Plugin ID 472827

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Apache Airflow's XCom `GET /api/v2/{...}/xcomEntries/{key}?deserialize=true` endpoint passed a string-
 literal payload through `BaseXCom.deserialize_value` without the `_check_forbidden_xcom_keys` guard,
 allowing an authenticated API user with XCom write-and-read access to instantiate arbitrary `airflow.*`
 classes on the API server (CWE-502). An authenticated user who can write an XCom value and then read it
 back with `deserialize=true` triggers the unsafe instantiation. Users are advised to upgrade to apache-
 airflow 3.3.1 or later, which rejects reserved XCom serialization keys submitted as JSON string literals.
 (CVE-2026-59242)

Solution

Update the apache-airflow library and its related packages to version 3.3.1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-59242

Plugin Details

Severity: Medium

ID: 472827

Version: Revision 1.1

Type: Local

Published: 10/5/2026

Updated: 10/13/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 7.92

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N

CVSS Score Source: CVE-2026-59242

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/4/2026

Vulnerability Publication Date: 8/12/2026

Reference Information

CVE: CVE-2026-59242