CVE-2020-7742 Prototype Pollution
High 7.5
Published
Updated
Check this codebase for CVE-2020-7742 and fix it if it is affected.
What it is: CVE-2020-7742 is a high-severity vulnerability in simpl-schema, published on 7 Oct 2020. 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-2020-7742 in the wild and no public exploit code.
Affected packages and fixed versions:
- simpl-schema (npm): affected all versions; fixed in 1.10.2
- simpl-schema (npm): affected all versions; fixed in 1.10.2
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-2020-7742/ (Markdown: https://insights.sbomify.com/CVE-2020-7742/index.md)
Prototype pollution in simpl-schema allows attackers to modify object prototypes, potentially leading to application instability or logic errors.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-7742?
CVE-2020-7742 is a high-severity vulnerability in simpl-schema, published on 7 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
This affects the package simpl-schema before 1.10.2.
Which versions are affected by CVE-2020-7742?
2 open source packages ship an affected version, including simpl-schema. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
simpl-schema npm | All versions | 1.10.2 |
simpl-schema npm | All versions | 1.10.2 |
Products include Simpl-Schema Project Simpl-Schema.
How do I fix CVE-2020-7742?
Upgrade simpl-schema to 1.10.2 or later.
Is CVE-2020-7742 being exploited?
There is no known exploitation of CVE-2020-7742 in the wild and no public exploit code.
Sources
Also known as GHSA-9mx2-prfp-8hqp, SNYK-JS-SIMPLSCHEMA-1016157.