Public proof of conceptFix available

CVE-2024-39877

Q: Is CVE-2024-39877 actively exploited?

Active exploitation of CVE-2024-39877 has not been confirmed. Its EPSS score was 1.7% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2024-39877?

CVE-2024-39877 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

A public proof of concept exists; no exploitation attested.

Published2024-07-17
Fixed in2.9.3
WeaknessCWE-277 · CWE-94

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Apache Airflow 2.4.0, and versions before 2.9.3, has a vulnerability that allows authenticated DAG authors to craft a doc_md parameter in a way that could execute arbitrary code in the scheduler context, which should be forbidden according to the Airflow Security model. Users should upgrade to version 2.9.3 or later which has removed the vulnerability.

Timeline

dates in UTC

2024-07-1708:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2024-39877?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2024-39877?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · CISA-ADP · OSV

Apache airflow

Branch	Affected	Fixed in	Source
2.x	≥ 2.4.0, < 2.9.3	2.9.3	NVD · CISA-ADP · OSV

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Apache airflow to 2.9.3

Advisories and patches

github.comPatch

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionpoc2024-07-18
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.18.82024-07-17
NVDCVSS 3.18.8read 2026-10-23
CISA-ADPweakness (CWE)CWE-2772024-07-17
CNAweakness (CWE)CWE-94read 2026-10-23
FIRST EPSSEPSS score1.7 %2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: 2024-07-17
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2024-39877?

Is CVE-2024-39877 actively exploited?

Active exploitation of CVE-2024-39877 has not been confirmed. Its EPSS score was 1.7% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2024-39877?

CVE-2024-39877 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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