CVE-2023-40273Network attack vector

Continued account access via retained sessions

Published Aug 23, 2023 · Updated Sep 27, 2024

Session fixation in Apache Airflow before 2.7.0 allows remote authenticated users to retain webserver access after a password reset. The reset_password path changed the password hash without deleting database-backed session rows, so previously issued cookies remained accepted until expiry. An authenticated account and an existing session cookie are required; the retained session preserves that account's existing web access.

CVSS severity8.0
High
EPSS probability1.85%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Session fixation in Apache Airflow before 2.7.0 allows remote authenticated users to retain webserver access after a password reset. The reset_password path changed the password hash without deleting database-backed session rows, so previously issued cookies remained accepted until expiry. An authenticated account and an existing session cookie are required; the retained session preserves that account's existing web access.

The record

CVE
CVE-2023-40273
Published
Aug 23, 2023
Updated
Sep 27, 2024
Vendor
The Apache Software Foundation
Product
Apache Airflow
Classifications
CWE-384, T1078
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 23, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 27, 2024Record 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 <=2.7.0
  2. Affected versionversion=0 <2.7.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · Apache Airflowversion=0 <=2.7.0; version=0 <2.7.0

Published CVSS scores

8.0CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
8.0NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-384Session Fixation
T1078Valid Accounts

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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