CVE-2026-124987 mikefarah yq encoder_properties.go Encode escape output
Medium 5.3
Published
Updated
Check this codebase for CVE-2026-124987 and fix it if it is affected.
What it is: CVE-2026-124987 is a medium-severity vulnerability in mikefarah yq, published on 9 Nov 2026.
Exploitation: There is no known exploitation of CVE-2026-124987 in the wild and no public exploit code.
Affected product: mikefarah yq. 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-2026-124987/ (Markdown: https://insights.sbomify.com/CVE-2026-124987/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-124987?
CVE-2026-124987 is a medium-severity vulnerability in mikefarah yq, published on 9 Nov 2026.
Official description
A vulnerability has been found in mikefarah yq up to 4.53.3. This affects the function Encode of the file pkg/yqlib/encoder_properties.go. Such manipulation leads to escaping of output. It is possible to launch the attack remotely. The pull request to fix this issue awaits acceptance.
Which versions are affected by CVE-2026-124987?
How do I fix CVE-2026-124987?
No fix has been published for CVE-2026-124987 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-124987 being exploited?
There is no known exploitation of CVE-2026-124987 in the wild and no public exploit code.
Sources
Also known as GHSA-f487-8253-89hg, UBUNTU-CVE-2026-124987.