CVE-2026-109568

High

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.

SeverityHigh

CVSS7.1

Exploit probability—

ProductShaark

PublishedOct 12, 2026

First seenOct 12, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Patches

github.com/MarceauKa/shaark/pull/110

Affected products

Product	Affected versions	Fixed in
MarceauKa Shaark	1.2.13 ≤ v ≤ 1.2.44	—

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