CVE-2026-18259 Token Content Access - Moderately critical - Access bypass - SA-CONTRIB-2026-090
High 7.5
Published
Updated
Check this codebase for CVE-2026-18259 and fix it if it is affected.
What it is: CVE-2026-18259 is a high-severity vulnerability in Drupal Token Content Access, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-18259 in the wild and no public exploit code.
Affected product: Drupal Token Content Access. 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-2026-18259/ (Markdown: https://insights.sbomify.com/CVE-2026-18259/index.md)
An attacker can exploit timing discrepancies to perform brute force attacks, potentially revealing sensitive information.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-18259?
CVE-2026-18259 is a high-severity vulnerability in Drupal Token Content Access, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Observable Timing Discrepancy vulnerability in Drupal Token Content Access allows Brute Force. This issue affects Token Content Access versions: from 0.0.0 to 3.1.2.
Weakness: CWE-208
Which versions are affected by CVE-2026-18259?
Linux distribution packages (1)
drupal/tca Packagist:https://packages.drupal.org/8 | All versions | 3.1.2 |
How do I fix CVE-2026-18259?
Upgrade to a fixed version.
Is CVE-2026-18259 being exploited?
There is no known exploitation of CVE-2026-18259 in the wild and no public exploit code.
Sources
Also known as DRUPAL-CONTRIB-2026-090, GHSA-prxm-c7p3-5gv7.