OpenStack keystonemiddleware up to 10.7.1/10.9.0/10.12.0 external_oauth2_token authentication spoofing

CVSS Meta Temp Score
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CTI Interest Score
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7.9$0-$5k0.00

Summaryinfo

A vulnerability was found in OpenStack keystonemiddleware up to 10.7.1/10.9.0/10.12.0. It has been classified as critical. This impacts the function external_oauth2_token. The manipulation leads to authentication spoofing. This vulnerability is documented as CVE-2026-22797. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in OpenStack keystonemiddleware up to 10.7.1/10.9.0/10.12.0. It has been rated as critical. This issue affects the function external_oauth2_token. The manipulation with an unknown input leads to a authentication spoofing vulnerability. Using CWE to declare the problem leads to CWE-290. This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in OpenStack keystonemiddleware 10.5 through 10.7 before 10.7.2, 10.8 and 10.9 before 10.9.1, and 10.10 through 10.12 before 10.12.1. The external_oauth2_token middleware fails to sanitize incoming authentication headers before processing OAuth 2.0 tokens. By sending forged identity headers such as X-Is-Admin-Project, X-Roles, or X-User-Id, an authenticated attacker may escalate privileges or impersonate other users. All deployments using the external_oauth2_token middleware are affected.

The advisory is shared at launchpad.net. The identification of this vulnerability is CVE-2026-22797 since 01/09/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 294807 (Debian dsa-6104 : python-keystonemiddleware-doc - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 10.7.2, 10.9.1 or 10.12.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (294807), EUVD (EUVD-2026-3202) and CERT Bund (WID-SEC-2026-0149). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Red Hat OpenStack

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 7.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.9
CNA Vector (MITRE): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authentication spoofing
CWE: CWE-290 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 294807
Nessus Name: Debian dsa-6104 : python-keystonemiddleware-doc - security update

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: keystonemiddleware 10.7.2/10.9.1/10.12.1

Timelineinfo

01/09/2026 CVE reserved
01/19/2026 +10 days Advisory disclosed
01/19/2026 +0 days VulDB entry created
01/23/2026 +4 days VulDB entry last update

Sourcesinfo

Vendor: openstack.org

Advisory: launchpad.net
Status: Confirmed

CVE: CVE-2026-22797 (🔒)
GCVE (CVE): GCVE-0-2026-22797
GCVE (VulDB): GCVE-100-341801
EUVD: 🔒
CERT Bund: WID-SEC-2026-0149 - Red Hat OpenStack (keystonemiddleware): Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen und potenziell Privilegieneskalation

Entryinfo

Created: 01/19/2026 19:37
Updated: 01/23/2026 10:58
Changes: 01/19/2026 19:37 (65), 01/20/2026 05:33 (1), 01/20/2026 13:31 (7), 01/23/2026 10:58 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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