CVE-2026-27627

Name: CVE-2026-27627
Creator: NVD / NIST
Published: 2026-02-25T04:16:03.757+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.32%

Last modified Jun 17, 2026

CVE-2026-27627 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 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. EPSS estimates a 0.32% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.32%

23.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Localhostlabs	Karakeep	0.30.0

References

https://github.com/karakeep-app/karakeep/commit/ba3db953c0d8675e2e3ecc29113a332b570b2cb9Patch
https://github.com/karakeep-app/karakeep/releases/tag/v0.31.0Product, Release Notes
https://github.com/karakeep-app/karakeep/security/advisories/GHSA-mg93-f9mw-wpgjExploit, Vendor Advisory

Timeline

Published: Feb 25, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-27627?

How severe is CVE-2026-27627?

CVE-2026-27627 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.

How do I fix CVE-2026-27627?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-27627?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST