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CVE-2026-22797

Quick assessment

Affected
OpenStack keystonemiddleware
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenStack keystonemiddleware是OpenStack开源的一个核心认证组件库。 OpenStack keystonemiddleware 10.7.2之前版本、10.9.1之前版本和10.12.1之前版本存在安全漏洞，该漏洞源于未清理身份验证标头，可能导致权限提升或用户冒充。

CVSS 9.9 · Critical EPSS 0.65% · P51

Affected Version Matrix 3

VendorProduct Version RangeStatus
OpenStack keystonemiddleware 10.5.0< 10.7.2 affected
10.8.0< 10.9.1 affected
10.10.0< 10.12.1 affected
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I. Basic Information for CVE-2026-22797

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
使用欺骗进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
OpenStack keystonemiddleware 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenStack keystonemiddleware是OpenStack开源的一个核心认证组件库。 OpenStack keystonemiddleware 10.7.2之前版本、10.9.1之前版本和10.12.1之前版本存在安全漏洞，该漏洞源于未清理身份验证标头，可能导致权限提升或用户冒充。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenStack keystonemiddleware 10.5.0 ~ 10.7.2 -

II. Public POCs for CVE-2026-22797

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III. Intelligence Information for CVE-2026-22797

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Mailing List Discussions for CVE-2026-22797 (1)

IV. Related Vulnerabilities

Same product: keystonemiddleware
Same vendor: OpenStack
Same weakness: CWE-290