Is CVE-2026-38743 in the CISA KEV catalog?

No. CVE-2026-38743 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-38743?

CVE-2026-38743 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2026-38743?

CVE-2026-38743 has an EPSS score of 0.35% (27th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-38743?

Upgrade airflow to 3.2.1 or later.

CVE & CISA-KEV Catalog

CVE-2026-38743

MEDIUM

4.3

CVSS v3

NVD

Description

The authenticated /ui/dags endpoint did not enforce per-DAG access control on embedded Human-in-the-Loop (HITL) and TaskInstance records: a logged-in Airflow user with read access to at least one DAG could retrieve HITL prompts (including their request parameters) and full TaskInstance details for DAGs outside their authorized scope. Because HITL prompts and TaskInstance fields routinely carry operator parameters and free-form context attached to a task, the leak widens visibility of DAG-run data beyond the intended per-DAG RBAC boundary for every authenticated user. Users are recommended to upgrade to version 3.2.1 , which fixes this issue.

CWE-1220

How to fix

Remediation Available

airflowNVD

Affected:< 3.2.1Fixed in:3.2.1CVE-2026-38743derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Exploit Intelligence

0.35%probability of exploitation in 30 days

27thpercentile

Low risk: more likely to be exploited than 27% of all known CVEs.

References

Patch1

github.com

Vendor Advisory1

lists.apache.org

Third-Party Advisory1

openwall.com

Embed a live status badge for CVE-2026-38743

Markdown

[![CVE-2026-38743](https://tridentstack.com/cve/badge/CVE-2026-38743.svg)](https://tridentstack.com/cve/CVE-2026-38743)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-38743"><img src="https://tridentstack.com/cve/badge/CVE-2026-38743.svg" alt="CVE-2026-38743"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-27.