CVE-2026-27627

HIGH

8.2

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.

CVE Details

CVSS v3.1 Score8.2

SeverityHIGH

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published2/25/2026

Last Modified3/10/2026

Sourcenvd

Honeypot Sightings0

Affected Products

localhostlabs:karakeep

Weaknesses (CWE)

CWE-79

References

https://github.com/karakeep-app/karakeep/commit/ba3db953c0d8675e2e3ecc29113a332b570b2cb9(security-advisories@github.com)

https://github.com/karakeep-app/karakeep/releases/tag/v0.31.0(security-advisories@github.com)

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

IOC Correlations

No correlations recorded

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