Threat Intelligence / CVE / CVE-2026-30898

CVE-2026-30898 — Apache Airflow

CVSS v3.1 8.8 (HIGH) · EPSS 0.7% (higher than 53.5% of all scored CVEs) · Priority 6.5/10 · Published 2026-04-18

As of 2026-04-22, CVE-2026-30898 is a HIGH-severity vulnerability in Apache Airflow, CVSS v3.1 8.8, EPSS 0.7% (53.5th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-30898, most recently “Endor Labs Discloses 14 Critical/High Vulnerabilities Across Seven AI Orchestration Platforms (NocoBase, Flowise, Langflow, Dify, Activepieces, Kestra, Apache Airflow)”.

Last updated: 2026-04-22

What is CVE-2026-30898?

An example of BashOperator in Airflow documentation suggested a way of passing dag_run.conf in the way that could cause unsanitized user input to be used to escalate privileges of UI user to allow execute code on worker. Users should review if any of their own DAGs have adopted this incorrect advice.

The record classifies CVE-2026-30898 under weakness class CWE-77. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 147 days ago.

Severity and exploitation probability

CVSS v3.1 base score
8.8 — HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (FIRST)
0.7% probability of exploitation in the next 30 days, higher than 53.5% of all scored CVEs
CISA KEV
Not listed in the CISA Known Exploited Vulnerabilities catalog
Threadlinqs priority
6.5/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
Published
2026-04-18, last modified 2026-04-22

Is CVE-2026-30898 being exploited?

No public exploitation evidence for CVE-2026-30898 is recorded in the sources Threadlinqs tracks — CISA KEV, Exploit-DB, public proof-of-concept repositories and ProjectDiscovery Nuclei — as of 2026-04-22. That is an absence of evidence in those feeds, not a guarantee that the vulnerability is unexploited.

Affected products and versions

How to fix CVE-2026-30898

Vendor advisory: https://lists.apache.org/thread/26zmhfj1t95c1hld2r14ho81nzh1bdc8. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

Threat activity tracking CVE-2026-30898

1 tracked threat in the Threadlinqs corpus references CVE-2026-30898, either in the campaign’s CVE list or as an indicator on the campaign record.

Sources

Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on . This product uses the NVD API but is not endorsed or certified by the NVD.

Vendor advisory and patch

Full detection coverage & IOCs for threats exploiting CVE-2026-30898 are available via the Threadlinqs MCP server (Purple tier). View plans →

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