CVE-2026-33010

mcp-memory-service is an open-source memory backend for multi-agent systems.

Verified by Precogs Threat Research
Last Updated: Mar 21, 2026
Base Score
8.1HIGH

Executive Summary

CVE-2026-33010 is a high severity vulnerability affecting appsec, pii-secrets. It is classified as CWE-942. Ensure your systems and dependencies are patched immediately to mitigate exposure risks.

Precogs AI Insight

"The defect is inherently caused by within Mcp-memory-service, allowing a failure to enforce strict data boundary conditions. By manipulating this weakness, a threat actor can gain unauthorized read or write access, effectively hijacking underlying configurations. The Precogs AI's Code Property Graph analysis traces untrusted input to intercept unsafe execution patterns."

Exploit Probability (EPSS)
Low (0.0%)
Public POC
Undisclosed
Exploit Probability
Elevated (52%)
Public POC
Available
Affected Assets
appsecpii secretsCWE-942

What is this vulnerability?

CVE-2026-33010 is categorized as a critical Buffer Overflow flaw. Based on our vulnerability intelligence, this issue occurs when the application fails to securely handle untrusted data boundaries.

mcp-memory-service is an open-source memory backend for multi-agent systems. Prior to version 10.25.1, when the HTTP server is enabled (MCP_HTTP_ENABLED=tr...

This architectural defect enables adversaries to bypass intended security controls, directly manipulating the application's execution state or data layer. Immediate strategic intervention is required.

Risk Assessment

MetricValue
CVSS Base Score8.1 (HIGH)
Vector StringCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
PublishedMarch 20, 2026
Last ModifiedMarch 21, 2026
Related CWEsCWE-942

Impact on Systems

Remote Code Execution: Attackers can overwrite the instruction pointer (EIP/RIP) to redirect execution to malicious shellcode.

Memory Corruption: Overwriting adjacent memory regions can corrupt critical application state, leading to unpredictable privilege escalation.

Denial of Service: Triggering segmentation faults and kernel panics results in immediate disruption of critical systems.

How to fix this issue?

Implement the following strategic mitigations immediately to eliminate the attack surface.

1. Memory-Safe Languages Where possible, migrate critical parsing logic to memory-safe languages like Rust or Go.

2. Safe Standard Libraries Replace unbounded C functions (strcpy, sprintf) with boundary-checking equivalents (strncpy, snprintf).

3. Compiler Defenses Ensure software is compiled with modern defensive flags: ASLR, DEP/NX, Stack Canaries (SSP), and Position Independent Executables (PIE).

Vulnerability Signature

// Vulnerable C Function
void parse_network_packet(char *untrusted_data) \{
    char local_buffer[128];
    // VULNERABLE: strcpy does not verify the length of the source data
    strcpy(local_buffer, untrusted_data);
    printf("Packet Processed.");
\}

// EXPLOIT PAYLOAD: 128 bytes of padding + [Overwrite EIP Address]

References and Sources

Vulnerability Code Signature

Attack Data Flow

StageDetail
SourceUntrusted User Input
VectorInput flows through the application logic without sanitization
SinkExecution or Rendering Sink
ImpactApplication compromise, Logic Bypass, Data Exfiltration

Vulnerable Code Pattern

# ❌ VULNERABLE: Unsanitized Input Flow
def process_request(request):
    user_input = request.GET.get('data')
    # Taint sink: processing untrusted data
    execute_logic(user_input)
    return {"status": "success"}

Secure Code Pattern

# ✅ SECURE: Input Validation & Sanitization
def process_request(request):
    user_input = request.GET.get('data')
    
    # Sanitized boundary check
    if not is_valid_format(user_input):
        raise ValueError("Invalid input format")
        
    sanitized_data = sanitize(user_input)
    execute_logic(sanitized_data)
    return {"status": "success"}

How Precogs Detects This

Precogs AI Analysis Engine maps untrusted input directly to execution sinks to catch complex application security vulnerabilities.\n

Related Vulnerabilitiesvia CWE-942

Is your system affected?

Precogs AI detects CVE-2026-33010 in compiled binaries, LLMs, and application layers — even without source code access.