CVE-2026-32700

Devise is an authentication solution for Rails based on Warden.

Verified by Precogs Threat Research
Last Updated: Mar 20, 2026
Base Score
0UNKNOWN

Executive Summary

CVE-2026-32700 is a unknown severity vulnerability affecting binary-analysis, ai-code, appsec. It is classified as CWE-362. Ensure your systems and dependencies are patched immediately to mitigate exposure risks.

Precogs AI Insight

"The root cause of this vulnerability lies in within Devise, allowing an architectural oversight in input validation. An attacker can craft a specific payload to silently exfiltrate sensitive routing topologies and internal schemas. The Precogs Binary SAST engine detects such memory corruption vulnerabilities to ensure strict authentication requirements are met."

Exploit Probability (EPSS)
Low (0.0%)
Public POC
Undisclosed
Exploit Probability
Low (<10%)
Public POC
Available
Affected Assets
binary analysisai codeappsecCWE-362

What is this vulnerability?

CVE-2026-32700 is categorized as a critical Memory Corruption Vulnerability flaw. Based on our vulnerability intelligence, this issue occurs when the application fails to securely handle untrusted data boundaries.

Devise is an authentication solution for Rails based on Warden. Prior to version 5.0.3, a race condition in Devise's Confirmable module allows an attacker ...

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 Score0 (UNKNOWN)
Vector StringN/A
PublishedMarch 18, 2026
Last ModifiedMarch 20, 2026
Related CWEsCWE-362

Impact on Systems

Remote Code Execution: Adversaries may execute arbitrary code by overwriting memory regions.

Denial of Service: Memory corruption often leads to unrecoverable application crashes.

Information Disclosure: Out-of-bounds reads can expose adjacent memory containing sensitive data.

How to fix this issue?

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

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

2. Compiler Protections Ensure the binary is compiled with ASLR, DEP/NX, Stack Canaries, and RELRO.

3. Fuzz Testing Implement continuous fuzzing with AddressSanitizer (ASan) in the CI/CD pipeline.

Vulnerability Signature

// Generic Memory Corruption Vector (C/C++)
void process_input(char *user_data, size_t size) \{
    char buffer[256];
    // DANGEROUS: Unbounded memory operation
    memcpy(buffer, user_data, size); // size may exceed 256
    
    // SECURED: Bound-checked operation
    if (size \> sizeof(buffer)) \{
        size = sizeof(buffer);
    \}
    memcpy(buffer, user_data, size);
\}

References and Sources

Vulnerability Code Signature

Attack Data Flow

StageDetail
SourceNetwork packet or file input
VectorData exceeds the allocated buffer bounds during a copy operation
Sinkstrcpy(), memcpy(), or pointer arithmetic
ImpactMemory corruption, Remote Code Execution (RCE)

Vulnerable Code Pattern

// ❌ VULNERABLE: Memory Corruption
void process_data(char *input) {
    char buffer[128];
    // Taint sink: copies without bounds checking
    strcpy(buffer, input);
}

Secure Code Pattern

// ✅ SECURE: Bounded Memory Operations
void process_data(char *input) {
    char buffer[128];
    // Sanitized boundary check
    strncpy(buffer, input, sizeof(buffer) - 1);
    buffer[sizeof(buffer) - 1] = '\0';
}

How Precogs Detects This

Precogs Binary SAST engine explicitly uncovers memory boundary violations and unsafe memory management functions in compiled binaries.\n

Related Vulnerabilitiesvia CWE-362

Is your system affected?

Precogs AI detects CVE-2026-32700 in compiled binaries, LLMs, and application layers — even without source code access.