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GHSA-5rrq-pxf6-6jx5

Prototype Pollution in node-forge debug API.

Low npm
Severity
Low
The publisher's own rating, not a CVSS score
Exploit chance (EPSS)
—
No score published
Known exploited
No
Not in CISA's catalog
Weakness
CWE-1321 Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Fix
1.0.0
Upgrade node-forge to this version or later

Description

Impact

The forge.debug API had a potential prototype pollution issue if called with untrusted input. The API was only used for internal debug purposes in a safe way and never documented or advertised. It is suspected that uses of this API, if any exist, would likely not have used untrusted inputs in a vulnerable way.

Patches

The forge.debug API and related functions were removed in 1.0.0.

Workarounds

Don't use the forge.debug API directly or indirectly with untrusted input.

References

For more information

If you have any questions or comments about this advisory:

Affected versions

npm

PackageVulnerableFixed in
node-forge
< 1.0.0
1.0.0

How to fix

Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.

node-forge npm → 1.0.0

npm
npm install node-forge@1.0.0
yarn
yarn add node-forge@1.0.0
pnpm
pnpm add node-forge@1.0.0

Weakness

CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.

How to prevent it
  • Implementation: By freezing the object prototype first (for example, Object.freeze(Object.prototype)), modification of the prototype becomes impossible.
  • Architecture and Design: By blocking modifications of attributes that resolve to object prototype, such as proto or prototype, this weakness can be mitigated.
  • Implementation: When handling untrusted objects, validating using a schema can be used.
  • Implementation: By using an object without prototypes (via Object.create(null) ), adding object prototype attributes by accessing the prototype via the special attributes becomes impossible, mitigating this weakness.
  • Implementation: Map can be used instead of objects in most cases. If Map methods are used instead of object attributes, it is not possible to access the object prototype or modify it.

References

Timeline

  1. Last updated by the source
  2. Published
AdvisorySeverityWhy it's related
GHSA-4642-5mcj-2rqw
Forge: ASN.1 OID first arc truncation in asn1.oidToDer
Low Also affects node-forge
GHSA-6wvx-3r32-xmcg
Forge: Prototype Pollution in forge.http cookie handling via a malicious Set-Cookie
Medium Also affects node-forge
GHSA-525v-9gp9-w22h
Forge: TLS client crash when the server sends no certificate
Medium Also affects node-forge
GHSA-7wch-p9px-956x
Forge: Regular expression denial of service in PEM decoding (pem.decode)
High Also affects node-forge
GHSA-h6cr-wjv9-3cpp
Forge: Denial of Service via infinite loop in BigInteger.modInverse() with negative input (incomplete fix of CVE-2026-33891)
Low Also affects node-forge
GHSA-4487-j8r4-4g2f
Forge: verifyCertificateChain() removes trusted CA certificates with the same subject from the CA store
Low Also affects node-forge
GHSA-5cwg-6vw7-rj6p
Forge: AES-GCM authentication bypass via unvalidated tagLength option
Medium Also affects node-forge
GHSA-jc66-7q78-782g
Forge: PKCS#12 MAC forgery and constant-key PBE via zero iteration count
High Also affects node-forge
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