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Medium 6.5
Improper application of excluded DNS name constraints when verifying wildcard names in crypto/x509
An excluded subdomain constraint in a certificate chain does not restrict the usage of wildcard SANs in the leaf certificate. For example a constraint that excludes the subdomain test.example.com does not prevent a leaf certificate from claiming the SAN *.exa…
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High 7.5
Excessive resource consumption when printing error string for host certificate validation in crypto/x509
Within HostnameError.Error(), when constructing an error string, there is no limit to the number of hosts that will be printed out. Furthermore, the error string is constructed by repeated string concatenation, leading to quadratic runtime. Therefore, a certi…
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Medium 5.4
CrossOriginProtection insecure bypass patterns not limited to exact matches in net/http
When using http.CrossOriginProtection, the AddInsecureBypassPattern method can unexpectedly bypass more requests than intended. CrossOriginProtection then skips validation, but forwards the original request path, which may be served by a different handler wit…
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High 7.0
Incorrect results returned from Rows.Scan in database/sql
Cancelling a query (e.g. by cancelling the context passed to one of the query methods) during a call to the Scan method of the returned Rows can result in unexpected results if other queries are being made in parallel. This can result in a race condition that…
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Medium 6.8
Sensitive headers not cleared on cross-origin redirect in net/http
Proxy-Authorization and Proxy-Authenticate headers persisted on cross-origin redirects potentially leaking sensitive information.
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High 7.5
Usage of ExtKeyUsageAny disables policy validation in crypto/x509
Calling Verify with a VerifyOptions.KeyUsages that contains ExtKeyUsageAny unintentionally disabledpolicy validation. This only affected certificate chains which contain policy graphs, which are rather uncommon.
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Medium 6.5
Incorrect Neutralization of Input During Web Page Generation in x/net in golang.org/x/net
The tokenizer incorrectly interprets tags with unquoted attribute values that end with a solidus character (/) as self-closing. When directly using Tokenizer, this can result in such tags incorrectly being marked as self-closing, and when using the Parse func…
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Critical 9.1
Request smuggling due to acceptance of invalid chunked data in net/http
The net/http package improperly accepts a bare LF as a line terminator in chunked data chunk-size lines. This can permit request smuggling if a net/http server is used in conjunction with a server that incorrectly accepts a bare LF as part of a chunk-ext.
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High 7.5
jwt-go allows excessive memory allocation during header parsing
golang-jwt is a Go implementation of JSON Web Tokens. Starting in version 3.2.0 and prior to versions 5.2.2 and 4.5.2, the function parse.ParseUnverified splits (via a call to strings.Split) its argument (which is untrusted data) on periods. As a result, in t…
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Medium 4.4CVE-2025-22870 Public exploit
HTTP Proxy bypass using IPv6 Zone IDs in golang.org/x/net
Matching of hosts against proxy patterns can improperly treat an IPv6 zone ID as a hostname component. For example, when the NO_PROXY environment variable is set to "*.example.com", a request to "[::1%25.example.com]:80` will incorrectly match and not be prox…
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High 7.5
Unexpected memory consumption during token parsing in golang.org/x/oauth2
An attacker can pass a malicious malformed token which causes unexpected memory to be consumed during parsing.
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High 7.5
Potential denial of service in golang.org/x/crypto
SSH servers which implement file transfer protocols are vulnerable to a denial of service attack from clients which complete the key exchange slowly, or not at all, causing pending content to be read into memory, but never transmitted.
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Medium 4.0
Timing sidechannel for P-256 on ppc64le in crypto/internal/nistec
Due to the usage of a variable time instruction in the assembly implementation of an internal function, a small number of bits of secret scalars are leaked on the ppc64le architecture. Due to the way this function is used, we do not believe this leakage is en…
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Medium 5.3
Non-linear parsing of case-insensitive content in golang.org/x/net/html
An attacker can craft an input to the Parse functions that would be processed non-linearly with respect to its length, resulting in extremely slow parsing. This could cause a denial of service.
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Critical 9.1CVE-2024-45337 Public exploit
Misuse of connection.serverAuthenticate may cause authorization bypass in golang.org/x/crypto
Applications and libraries which misuse connection.serverAuthenticate (via callback field ServerConfig.PublicKeyCallback) may be susceptible to an authorization bypass. The documentation for ServerConfig.PublicKeyCallback says that "A call to this function do…
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Low 3.1
Bad documentation of error handling in ParseWithClaims can lead to potentially dangerous situations in golang-jwt
golang-jwt is a Go implementation of JSON Web Tokens. Unclear documentation of the error behavior in `ParseWithClaims` can lead to situation where users are potentially not checking errors in the way they should be. Especially, if a token is both expired and …