GHSA-g9r4-xpmj-mj65 Prototype Pollution in handlebars
Not scored
Published
Check this codebase for GHSA-g9r4-xpmj-mj65 and fix it if it is affected.
What it is: GHSA-g9r4-xpmj-mj65 is a vulnerability in handlebars, published on 4 Sep 2020.
Exploitation: There is no known exploitation of GHSA-g9r4-xpmj-mj65 in the wild and no public exploit code.
Affected packages and fixed versions:
- handlebars (npm): affected all versions; fixed in 3.0.8
- handlebars (npm): affected all versions; fixed in 3.0.8
- handlebars (npm): affected from 4.0.0; fixed in 4.5.3
- handlebars (npm): affected from 4.0.0; fixed in 4.5.3
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/GHSA-g9r4-xpmj-mj65/ (Markdown: https://insights.sbomify.com/GHSA-g9r4-xpmj-mj65/index.md)
- Exploited in the wild
- Not known
- Fix
- Available
What is GHSA-g9r4-xpmj-mj65?
GHSA-g9r4-xpmj-mj65 is a vulnerability in handlebars, published on 4 Sep 2020.
Official description
Versions of handlebars prior to 3.0.8 or 4.5.3 are vulnerable to prototype pollution. It is possible to add or modify properties to the Object prototype through a malicious template. This may allow attackers to crash the application or execute Arbitrary Code in specific conditions.
Recommendation
Upgrade to version 3.0.8, 4.5.3 or later.
Which versions are affected by GHSA-g9r4-xpmj-mj65?
4 open source packages ship an affected version, including handlebars.
| Package | Affected | Fixed in |
|---|---|---|
handlebars npm | All versions | 3.0.8 |
handlebars npm | All versions | 3.0.8 |
handlebars npm | From 4.0.0 | 4.5.3 |
handlebars npm | From 4.0.0 | 4.5.3 |
How do I fix GHSA-g9r4-xpmj-mj65?
Upgrade handlebars to a fixed version for your release line: 3.0.8 or 4.5.3.
Is GHSA-g9r4-xpmj-mj65 being exploited?
There is no known exploitation of GHSA-g9r4-xpmj-mj65 in the wild and no public exploit code.