CVE-2026-82230

Uncontrolled recursion in the mcpack2pb component in Apache bRPC version 1.18.0 on all platforms allows remote attackers to make the server crash via sending deeply nested mcpack data. Root Cause: The bRPC mcpack2pb parser used to serve nsheadmcpack / ubrpc / publicpbrpc requests recursively pars...

CVE-2026-74755

An integer underflow in the mcpack2pb component of Apache bRPC version 1.18.0 on all platforms allows remote attackers to crash a bRPC server by sending a request containing a string field with a zero valuesize. The UnparsedValue::asstring function computes size - 1 without validating size; when...

CVE-2026-74757

Uncontrolled resource allocation in the mcpack2pb component in Apache bRPC version 1.18.0 on all platforms allows remote attackers to make the server allocate a large amount of memory via sending a crafted mcpack request with a huge array item count. Root Cause: The bRPC mcpack2pb parser trusts t...

CVE-2026-82230 Apache bRPC: Stack Exhaustion via Unbounded Recursion in mcpack2pb Parser

Uncontrolled recursion in the mcpack2pb component in Apache bRPC version 1.18.0 on all platforms allows remote attackers to make the server crash via sending deeply nested mcpack data. Root Cause: The bRPC mcpack2pb parser used to serve nsheadmcpack / ubrpc / publicpbrpc requests recursively pars...

CVE-2026-82230

Apache bRPC (versions prior to 1.18.0 ) is vulnerable to a denial of service via uncontrolled recursion in the mcpack2pb component. The parser, used for nshead_mcpack, ubrpc, and public_pbrpc requests, fails to enforce a depth limit when processing nested objects and arrays. A remote attacker can...

EUVD-2026-107217

Uncontrolled recursion in the mcpack2pb component in Apache bRPC version 1.18.0 on all platforms allows remote attackers to make the server crash via sending deeply nested mcpack data. Root Cause: The bRPC mcpack2pb parser used to serve nsheadmcpack / ubrpc / publicpbrpc requests recursively pars...

CVE-2026-82230 Apache bRPC: Stack Exhaustion via Unbounded Recursion in mcpack2pb Parser

Uncontrolled recursion in the mcpack2pb component in Apache bRPC version 1.18.0 on all platforms allows remote attackers to make the server crash via sending deeply nested mcpack data. Root Cause: The bRPC mcpack2pb parser used to serve nsheadmcpack / ubrpc / publicpbrpc requests recursively pars...

EUVD-2026-107181

Uncontrolled resource allocation in the mcpack2pb component in Apache bRPC version 1.18.0 on all platforms allows remote attackers to make the server allocate a large amount of memory via sending a crafted mcpack request with a huge array item count. Root Cause: The bRPC mcpack2pb parser trusts t...

CVE-2026-74757 Apache bRPC: Uncontrolled Memory Allocation via Malicious mcpack Array Item Count

Uncontrolled resource allocation in the mcpack2pb component in Apache bRPC version 1.18.0 on all platforms allows remote attackers to make the server allocate a large amount of memory via sending a crafted mcpack request with a huge array item count. Root Cause: The bRPC mcpack2pb parser trusts t...

CVE-2026-74757

Apache bRPC (versions

CVE-2026-74755

Apache bRPC (versions prior to 1.18.0 ) is vulnerable to a Denial of Service due to an integer underflow in the mcpack2pb component. The UnparsedValue::as_string() function in src/mcpack2pb/parser.cpp fails to validate the value_size of string fields from network data; when the size is 0, the cal...

EUVD-2026-107180

An integer underflow in the mcpack2pb component of Apache bRPC version 1.18.0 on all platforms allows remote attackers to crash a bRPC server by sending a request containing a string field with a zero valuesize. The UnparsedValue::asstring function computes size - 1 without validating size; when...

CVE-2026-74755 Apache bRPC: Integer Underflow in mcpack2pb Parser Leading to Denial of Service

An integer underflow in the mcpack2pb component of Apache bRPC version 1.18.0 on all platforms allows remote attackers to crash a bRPC server by sending a request containing a string field with a zero valuesize. The UnparsedValue::asstring function computes size - 1 without validating size; when...

PT-2026-120558

Uncontrolled recursion in the mcpack2pb component in Apache bRPC version 1.18.0 on all platforms allows remote attackers to make the server crash via sending deeply nested mcpack data. Root Cause: The bRPC mcpack2pb parser used to serve nshead mcpack / ubrpc / public pbrpc requests recursively...

PT-2026-120539

Uncontrolled resource allocation in the mcpack2pb component in Apache bRPC version 1.18.0 on all platforms allows remote attackers to make the server allocate a large amount of memory via sending a crafted mcpack request with a huge array item count. Root Cause: The bRPC mcpack2pb parser trusts t...

PT-2026-120538

An integer underflow in the mcpack2pb component of Apache bRPC version 1.18.0 on all platforms allows remote attackers to crash a bRPC server by sending a request containing a string field with a zero value size. The UnparsedValue::as string function computes size - 1 without validating size; whe...