CVE-2026-27627

Published: Feb 25, 2026Modified: Jun 17, 2026

6.1

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitability: 2.8 / Impact: 2.7

Source: NVD

Description

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.

Affected (1)

Products: Localhostlabs: Karakeep

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Localhostlabs Karakeep	Version 0.30.0

Related CWEs

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

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (3)

https://github.com/karakeep-app/karakeep/commit/ba3db953c0d8675e2e3ecc29113a332b570b2cb9

Source: security-advisories@github.com

Patch

https://github.com/karakeep-app/karakeep/releases/tag/v0.31.0

Source: security-advisories@github.com

ProductRelease Notes

https://github.com/karakeep-app/karakeep/security/advisories/GHSA-mg93-f9mw-wpgj

Source: security-advisories@github.com

ExploitVendor Advisory

Timeline

No history available yet.