---
id: "CVE-2026-116879"
kind: "vulnerability"
aliases: ["CVE-2026-116879"]
title: "Semantic MediaWiki: users with edit rights can force updates on restricted pages"
severity: "medium"
cvss: 6.9
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["mediawiki", "package", "self-hosted", "semantic-mediawiki"]
not_affected_if: ["read-only-wiki", "smw-not-7.3.0"]
published_at: "2026-10-27T11:17:29+00:00"
first_seen_at: "2026-10-27T11:31:27+00:00"
updated_at: "2026-10-27T11:31:54+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-116879", "first_seen_at": "2026-10-27T11:31:27+00:00"}]
---

# Semantic MediaWiki: users with edit rights can force updates on restricted pages

Semantic MediaWiki 7.3.0 before 7.3.1 has a missing authorization check in its smwtask update task. A user with edit rights can force semantic updates on arbitrary pages, including restricted ones, which triggers reparsing, semantic-store writes and heavy dependency work.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Semantic MediaWiki version in Special:Version on the wiki, or in `composer.lock` for the `mediawiki/semantic-media-wiki` package.
- Confirm whether the wiki runs SMW 7.3.0 specifically.

## Fix

- Upgrade Semantic MediaWiki to `7.3.1` or later.

## Timeline

- 2026-10-27T11:31:27+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-116879

## From the sources

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.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_