Findings

CVE-2026-27627

Karakeep is a elf-hostable bookmark-everything app.

Published Feb 25, 2026 · updated Jun 17, 2026 · localhostlabs karakeep

Karakeep is a elf-hostable bookmark-everything app. In version 0.30.0, when the Reddit metascraper plugin returns , 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 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.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 25, 2026 · NIST NVD

    Detected

    Karakeep is a elf-hostable bookmark-everything app. In version 0.30.0, when the Reddit metascraper plugin returns , 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 in the reader view, any malicious HTML in the Reddit respon

  2. Jun 17, 2026 · NIST NVD

    Updated

    Karakeep is a elf-hostable bookmark-everything app. In version 0.30.0, when the Reddit metascraper plugin returns , 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 in the reader view, any malicious HTML in the Reddit respon

Affected

  • cpe localhostlabs/karakeep0.30.0

Sources

  • NIST NVDVulnerability recordCVE-2026-27627

    Karakeep is a elf-hostable bookmark-everything app. In version 0.30.0, when the Reddit metascraper plugin returns , the HTML parsing subprocess uses it directly without running it through DOMPurify. Every other content source in the crawler goes through Reada

    nvd.nist.gov

References

CVE-2026-27627 · ZeroDay Findings