GO-2025-4007

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Source
https://pkg.go.dev/vuln/GO-2025-4007
Import Source
https://vuln.go.dev/ID/GO-2025-4007.json
JSON Data
https://api.osv.dev/v1/vulns/GO-2025-4007
Aliases
Published
2025-10-29T21:49:50Z
Modified
2025-11-06T13:59:40.586079Z
Summary
Quadratic complexity when checking name constraints in crypto/x509
Details

Due to the design of the name constraint checking algorithm, the processing time of some inputs scals non-linearly with respect to the size of the certificate.

This affects programs which validate arbitrary certificate chains.

Database specific 
{
    "url": "https://pkg.go.dev/vuln/GO-2025-4007",
    "review_status": "REVIEWED"
}
References
Credits
    • Jakub Ciolek

Affected packages

Go / stdlib

Package

Name
stdlib
View open source insights on deps.dev
Purl
pkg:golang/stdlib

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.24.9
Introduced
1.25.0
Fixed
1.25.3

Ecosystem specific 

{
    "imports": [
        {
            "path": "crypto/x509",
            "symbols": [
                "CertPool.AppendCertsFromPEM",
                "Certificate.CheckCRLSignature",
                "Certificate.CheckSignature",
                "Certificate.CheckSignatureFrom",
                "Certificate.CreateCRL",
                "Certificate.Verify",
                "CertificateRequest.CheckSignature",
                "CreateCertificate",
                "CreateCertificateRequest",
                "CreateRevocationList",
                "DecryptPEMBlock",
                "EncryptPEMBlock",
                "MarshalECPrivateKey",
                "MarshalPKCS1PrivateKey",
                "MarshalPKCS1PublicKey",
                "MarshalPKCS8PrivateKey",
                "MarshalPKIXPublicKey",
                "ParseCRL",
                "ParseCertificate",
                "ParseCertificateRequest",
                "ParseCertificates",
                "ParseDERCRL",
                "ParseECPrivateKey",
                "ParsePKCS1PrivateKey",
                "ParsePKCS1PublicKey",
                "ParsePKCS8PrivateKey",
                "ParsePKIXPublicKey",
                "ParseRevocationList",
                "RevocationList.CheckSignatureFrom",
                "SetFallbackRoots",
                "SystemCertPool",
                "domainToReverseLabels",
                "parseSANExtension"
            ]
        }
    ]
}