Your RSA-2048 keys break in 2030. Find every one of them before attackers do.
🛡️
Not in CISA KEV
HIGH severity

CVE-2026-109568 — MarceauKa

HIGHFix: MarceauKa/shaark#110

CVE-2026-109568 is a high-severity (CVSS 7.1) CWE-639 vulnerability. No vendor fix is recorded yet; mitigation options are listed below.

Shaark 1.2.13 through 1.2.44 contains a missing authorization vulnerability in the Link, Story, Chest and Album API controllers that skips ownership checks. Authenticated non-admin…

Published
Updated
Affected
—
Patched
See advisory
Exploits
None indexed
Exploitation data as of Oct 12, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Description

Shaark 1.2.13 through 1.2.44 contains a missing authorization vulnerability in the Link, Story, Chest and Album API controllers that skips ownership checks. Authenticated non-admin users can send PUT or DELETE requests to /api/{link,story,chest,album}/{id} with numeric IDs to overwrite or delete other users' content, including private items.

Detection & mitigation playbook

Vulnerability
  1. Detect

    Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

  2. Remediation status

    No fixed release is recorded for CVE-2026-109568 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.

  3. Mitigate without a patch

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Frequently Asked Questions

Shaark 1.2.13 through 1.2.44 contains a missing authorization vulnerability in the Link, Story, Chest and Album API controllers that skips ownership checks. Authenticated non-admin users can send PUT or DELETE requests to /api/{link,story,chest,album}/{id} with numeric IDs to overwrite or delete other users' content, including private items.
O3 Security · Impact-Aware SCA

Is CVE-2026-109568 in your dependencies?

Find it across , including transitive dependencies.