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 *.example.com.
CVSS Score
6.5
EPSS Score
0.0
Published
2025-12-03
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 certificate provided by a malicious actor can result in excessive resource consumption.
CVSS Score
7.5
EPSS Score
0.0
Published
2025-12-02
The Reader.ReadResponse function constructs a response string through repeated string concatenation of lines. When the number of lines in a response is large, this can cause excessive CPU consumption.
CVSS Score
5.3
EPSS Score
0.0
Published
2025-10-29
Parsing a maliciously crafted DER payload could allocate large amounts of memory, causing memory exhaustion.
CVSS Score
5.3
EPSS Score
0.0
Published
2025-10-29
Due to the design of the name constraint checking algorithm, the processing time of some inputs scale non-linearly with respect to the size of the certificate. This affects programs which validate arbitrary certificate chains.
CVSS Score
7.5
EPSS Score
0.0
Published
2025-10-29
Validating certificate chains which contain DSA public keys can cause programs to panic, due to a interface cast that assumes they implement the Equal method. This affects programs which validate arbitrary certificate chains.
CVSS Score
7.5
EPSS Score
0.0
Published
2025-10-29
When Conn.Handshake fails during ALPN negotiation the error contains attacker controlled information (the ALPN protocols sent by the client) which is not escaped.
CVSS Score
5.3
EPSS Score
0.0
Published
2025-10-29
The processing time for parsing some invalid inputs scales non-linearly with respect to the size of the input. This affects programs which parse untrusted PEM inputs.
CVSS Score
7.5
EPSS Score
0.0
Published
2025-10-29
The Parse function permits values other than IPv6 addresses to be included in square brackets within the host component of a URL. RFC 3986 permits IPv6 addresses to be included within the host component, enclosed within square brackets. For example: "http://[::1]/". IPv4 addresses and hostnames must not appear within square brackets. Parse did not enforce this requirement.
CVSS Score
5.3
EPSS Score
0.0
Published
2025-10-29
If the PATH environment variable contains paths which are executables (rather than just directories), passing certain strings to LookPath ("", ".", and ".."), can result in the binaries listed in the PATH being unexpectedly returned.
CVSS Score
6.5
EPSS Score
0.0
Published
2025-09-18
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