CVE-2026-119416 CakePHP through 5.4.3 Cookie Leakage via HTTP Client CookieCollection Domain Matching
Medium 6.3
Published
Updated
Check this codebase for CVE-2026-119416 and fix it if it is affected.
What it is: CVE-2026-119416 is a medium-severity vulnerability in cakephp, published on 30 Oct 2026.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-119416 exists.
Affected product: cakephp. 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-2026-119416/ (Markdown: https://insights.sbomify.com/CVE-2026-119416/index.md)
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-119416?
CVE-2026-119416 is a medium-severity vulnerability in cakephp, published on 30 Oct 2026.
Official description
CakePHP through 5.4.3 contains an improper cookie domain validation vulnerability in the Http Client CookieCollection that allows malicious servers to receive and plant cookies by abusing unanchored suffix matching. Attackers controlling a host such as one ending in a victim domain suffix, or sending Set-Cookie Domain values for unrelated hosts, can steal session cookies or inject cookies into shared client cookie jars.
Weakness: CWE-346
Which versions are affected by CVE-2026-119416?
How do I fix CVE-2026-119416?
Upgrade to a fixed version.
Is CVE-2026-119416 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-119416 exists.
Sources
Also known as GHSA-g3vg-xwg9-qrvh, UBUNTU-CVE-2026-119416.