CVE-2026-27169

HIGH
2026-02-21 [email protected]
8.9
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
Low

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 22:04 vuln.today
CVE Published
Feb 21, 2026 - 00:16 nvd
HIGH 8.9

Description

OpenSift is an AI study tool that sifts through large datasets using semantic search and generative AI. Versions 1.1.2-alpha and below render untrusted user/model content in chat tool UI surfaces using unsafe HTML interpolation patterns, leading to XSS. Stored content can execute JavaScript when later viewed in authenticated sessions. An attacker who can influence stored study/quiz/flashcard content could trigger script execution in a victim’s browser, potentially performing actions as that user in the local app session. This issue has been fixed in version 1.1.3-alpha.

Analysis

Stored cross-site scripting in OpenSift versions 1.1.2-alpha and below allows authenticated attackers to execute arbitrary JavaScript in victims' browsers by injecting malicious content into study materials, quizzes, or flashcards that render without proper HTML sanitization. An attacker with the ability to create or modify stored content could perform unauthorized actions within authenticated user sessions. …

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Remediation

Within 24 hours: Inventory all OpenShift deployments and document version numbers; restrict chat feature access to trusted internal networks only. Within 7 days: Isolate or air-gap OpenShift instances handling sensitive data; escalate to vendor for patch timeline and interim security guidance. …

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Priority Score

45
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +44
POC: 0

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CVE-2026-27169 vulnerability details – vuln.today

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