CVE-2026-45361Network attack vector

SSH session interception via automatic host-key trust

Published May 25, 2026 · Updated May 25, 2026

Improper SSH host-key validation in Apache Airflow Google Provider before 22.0.0 allows attackers to intercept or modify SSH sessions. ComputeEngineSSHHook hard-codes Paramiko AutoAddPolicy for unknown host keys, automatically trusting an unverified server instead of authenticating it. Exploitation requires attackers positioned on the network path between an Airflow worker and a Compute Engine VM; successful interception exposes session data and command integrity.

CVSS severity8.1
High
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper SSH host-key validation in Apache Airflow Google Provider before 22.0.0 allows attackers to intercept or modify SSH sessions. ComputeEngineSSHHook hard-codes Paramiko AutoAddPolicy for unknown host keys, automatically trusting an unverified server instead of authenticating it. Exploitation requires attackers positioned on the network path between an Airflow worker and a Compute Engine VM; successful interception exposes session data and command integrity.

The record

CVE
CVE-2026-45361
Published
May 25, 2026
Updated
May 25, 2026
Vendor
The Apache Software Foundation
Product
Apache Airflow Google Provider
Classifications
CWE-322, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 25, 2026CVE publishedPublication date reported by the CVE source.
  2. May 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <22.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache Airflow Google Providerversion=0 <22.0.0

Published CVSS scores

8.1CISA-ADPCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-322Key Exchange without Entity Authentication
T1557Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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