CVE-2026-113356 DokuWiki before 2026-07-14c PHP Object Injection via Draft Race Condition
High 7.7
Published
Updated
Check this codebase for CVE-2026-113356 and fix it if it is affected.
What it is: CVE-2026-113356 is a high-severity vulnerability in DokuWiki, published on 20 Oct 2026.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-113356 exists.
Affected product: DokuWiki. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2026-113356/ (Markdown: https://insights.sbomify.com/CVE-2026-113356/index.md)
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-113356?
CVE-2026-113356 is a high-severity vulnerability in DokuWiki, published on 20 Oct 2026.
Official description
DokuWiki before 2026-07-14c contains a PHP object injection vulnerability in Draft::getDraftText() that passes draft file contents to unserialize() without restricting allowed classes. Authenticated users with edit rights can race concurrent draft rewrites to splice serialized data, instantiating gadgets like MemoryIndex or Installer for arbitrary file write, deletion, and code execution.
Weakness: CWE-502
Which versions are affected by CVE-2026-113356?
How do I fix CVE-2026-113356?
Upgrade to a fixed version.
Is CVE-2026-113356 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-113356 exists.
Sources
Also known as DEBIAN-CVE-2026-113356, GHSA-9xhj-2fcr-x9j8, UBUNTU-CVE-2026-113356.