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Vulnerabilities

Vulnerability · CVE-2026-27627

Karakeep is a elf-hostable bookmark-everything app.

Published Feb 25, 2026 · catalog updated Jun 17, 2026 · Karakeep is a elf-hostable

Check if you run it

No confirmed exploitation is on record for CVE-2026-27627. EPSS is 0.39%. Act only if a listed version of Karakeep is a elf-hostable is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Karakeep is a elf-hostable).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.39%
Remediation
Advisory link
Affected products
cpe 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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe localhostlabs/karakeep0.30.0

How to fix CVE-2026-27627

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-27627. EPSS is 0.39%. Act only if a listed version of Karakeep is a elf-hostable is installed.

Which versions are affected?

Compare what you have installed with 0.30.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-79: Cross-site Scripting (XSS). EPSS 0.39%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

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

Sources

  • CVE.orgVulnerability recordCVE-2026-27627

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-27627

    30-day exploitation probability 0.4%

    first.org
  • 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

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.