CVE-2026-13510: Weak Cryptographic Hash in SimStudioAI Password Protection

Technical summary

The vulnerability resides in the Password Protection Handler component (apps/sim/lib/core/security/deployment.ts) where password hashing employs weak cryptographic algorithms. This falls under CWE-327 (Use of a Broken or Risky Cryptographic Algorithm) and CWE-328 (Use of Insufficiently Random Values). An attacker can remotely exploit this by manipulating password protection logic, though successful exploitation requires high attack complexity. The weakness potentially enables password recovery or bypass depending on the specific hash algorithm and implementation details.

Business impact

Compromised password hashes could lead to unauthorized access to SimStudioAI instances if attackers are able to crack or precompute values against weak algorithms. For organizations relying on SimStudioAI for simulation workloads, this poses a confidentiality risk—attackers with network access may extract password material for credential reuse elsewhere. The impact is limited by attack complexity, but the public nature of the exploit removes a significant barrier to widespread attempts.

Affected systems

SimStudioAI versions up to and including 0.6.92 are vulnerable. Organizations must verify their current deployed version and identify all internal instances, particularly those exposed to untrusted networks or handling sensitive simulation data.

Exploitability

A public exploit has been released, reducing the barrier to weaponization. However, the attack carries high complexity requirements, meaning successful exploitation is not trivial and may depend on environmental factors, authentication state, or network positioning. Remote exploitation is possible without user interaction, but the practical challenge of execution limits widespread autonomous attacks.

Remediation

Upgrade SimStudioAI to a version above 0.6.92 as soon as practical. A pull request to resolve the weak hash implementation is pending vendor acceptance; monitor the project repository for official release announcements. Until an official patch is available, consider isolating SimStudioAI instances from untrusted networks or implementing additional access controls.

Patch guidance

Check the SimStudioAI project repository and vendor advisories for availability of a patched version superseding 0.6.92. The fix is expected to implement cryptographically strong hash functions (e.g., bcrypt, Argon2, or PBKDF2 with adequate iterations). Apply patches in a staged rollout after testing in a non-production environment to ensure compatibility with your deployment.

Detection guidance

Monitor network traffic for unusual authentication attempts or password reset activity against SimStudioAI instances. Review logs for multiple failed login attempts in short timeframes, which may indicate hash-cracking activity. If version inventory tools are available, scan for instances running 0.6.92 or earlier. Additionally, monitor the deployment.ts component and surrounding authentication code for signs of manipulation or access.

Why prioritize this

While the CVSS score of 3.7 (LOW) reflects limited severity, the combination of public exploit availability and remote accessibility makes this a medium-priority remediation. Organizations should plan an upgrade within 30–60 days, sooner if SimStudioAI instances are internet-facing or handle high-value data. The high attack complexity reduces immediate urgency but does not eliminate risk, especially as exploit maturity increases over time.

Risk score, explained

The CVSS 3.1 score of 3.7 reflects a low-severity issue constrained by high attack complexity (AC:H), lack of privileges required (PR:N), and limited impact to confidentiality only (C:L). Network accessibility (AV:N) and absence of user interaction (UI:N) prevent a lower rating. The score does not factor in public exploit availability or organizational risk tolerance; teams should apply additional context specific to their environment.

Frequently asked questions