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CVE-2020-13927

99
FAUCET Score

CVE-2020-13927 addresses a critical security flaw in Apache Airflow versions prior to 1.10.11, where the Experimental API defaulted to allowing unauthenticated access, posing significant risks. This vulnerability carries a CVSS score of 9.8 (CRITICAL) due to its network-based attack vector, low complexity, and potential for complete compromise of confidentiality, integrity, and availability. It is actively exploited in the wild, with readily available exploit code in Metasploit and Nuclei, and has garnered substantial community discussion and media attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.10.11CPE matchmatch criteria
cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
99.67%
Probability of exploitation in next 30 days
EPSS Percentile
99.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Jan 18, 2022
Metasploit: Apache Airflow 1.10.10 - Example DAG Remote Code Execution · Jul 14, 2020
Nuclei: CVE-2020-13927 · Jan 10, 2021
ExploitDB: EDB-49927 · Jun 2, 2021
This CVE's current EPSS score of 0.9967 is in the 100th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

pippatch availablevia ghsa
Product: apache-airflowFixed in: 1.10.11

Vendor Advisories (1)

pipGHSA-hhx9-p69v-cx2jcritical

Authentication bypass in Apache Airflow

Apr 30, 2021

References

cisa.gov / known-exploited-vulnerabilities-catalog
Third Party AdvisoryUS Government Resource
packetstormsecurity.com / files/162908/Apache-Airflow-1.10.10-Remote-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
packetstormsecurity.com / files/174764/Apache-Airflow-1.10.10-Remote-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
lists.apache.org / thread.html/r23a81b247aa346ff193670be565b2b8ea4b17ddbc7a35fc099c1aadd%40%3Cdev.airflow.apache.org%3E
Mailing ListVendor Advisory