CVE-2026-116879 Semantic MediaWiki 7.3.0 before 7.3.1 Missing Authorization via smwtask Update Task

Medium 6.9 Published 27 Oct 2026 Updated 27 Oct 2026

Exploited in the wild: Not known
Fix: None listed

What is CVE-2026-116879?

CVE-2026-116879 is a medium-severity vulnerability in SemanticMediaWiki, published on 27 Oct 2026.

Official description

Semantic MediaWiki from 7.3.0 before 7.3.1 contains a missing authorization vulnerability in the smwtask update task that allows users with edit rights to force semantic updates on arbitrary pages. Attackers can supply a serialized subject parameter for a restricted page to trigger forced reparsing, semantic-store writes, and resource-intensive dependency work.

Weakness: CWE-862

Which versions are affected by CVE-2026-116879?

How do I fix CVE-2026-116879?

No fix has been published for CVE-2026-116879 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-116879 being exploited?

There is no known exploitation of CVE-2026-116879 in the wild and no public exploit code.

Sources

Also known as GHSA-562p-4gfm-c22f, GHSA-6wrc-864f-6vqp.