CVE-2026-27627

Karakeep is a elf-hostable bookmark-everything app. In version 0.30.0, when the Reddit metascraper plugin returns `readableContentHtml`, the HTML parsing subprocess uses it directly without running it through DOMPurify. Every other content source in the crawler goes through Readability + DOMPurify, but the Reddit path skips both. Since this content ends up in `dangerouslySetInnerHTML` in the reader view, any malicious HTML in the Reddit response gets executed in the user's browser. Version 0.31.0 contains a patch for this issue.

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/karakeep-app/karakeep/commit/ba3db953c0d8675e2e3ecc29113a332b570b2cb9	Patch
https://github.com/karakeep-app/karakeep/releases/tag/v0.31.0	Product Release Notes
https://github.com/karakeep-app/karakeep/security/advisories/GHSA-mg93-f9mw-wpgj	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:localhostlabs:karakeep:0.30.0:*:*:*:*:-:*:*

History

No history.

Information

Published : 2026-02-25 04:16

Updated : 2026-06-17 10:27

NVD link : CVE-2026-27627

Mitre link : CVE-2026-27627

CVE.ORG link : CVE-2026-27627

JSON object : View

Products Affected

localhostlabs

karakeep

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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