Classic Buffer OverflowWeakness · CWE-120

CVE-2024-36760

HIGH · 7.5 CVSS v3.1 Published 2024-06-13
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A stack overflow vulnerability was found in version 1.18.0 of rhai. The flaw position is: (/ SRC/rhai/SRC/eval/STMT. Rs in rhai: : eval: : STMT: : _ $LT $impl $u20 $rhai.. engine.. Engine$GT$::eval_stmt::h3f1d68ce37fc6e96). Due to the stack overflow is a recursive call/SRC/rhai/SRC/eval/STMT. Rs file eval_stmt_block function.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

A stack overflow vulnerability exists in rhai version 1.18.0 in the eval_stmt_block function within /src/rhai/src/eval/STMT.rs. The vulnerability is caused by unbounded recursive calls in the eval_stmt function, which can be triggered to cause a denial of service via stack exhaustion.

MitigationUpdate to a patched version of rhai that addresses the recursive call issue, or implement recursion limits/bounds checking in the eval_stmt_block function to prevent unbounded recursion.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Locate rhai dependency
    Search project Cargo.toml, Cargo.lock, or package manifests for the rhai crate entry
    Affected if rhai appears as a direct or transitive dependency
  2. Determine installed rhai version
    Run 'cargo tree -p rhai' or inspect Cargo.lock for the rhai crate version
    Affected if version resolves to 1.18.0
  3. Identify script evaluation usage
    Search source code for calls to RhaiEngine::eval, RhaiEngine::eval_file, or similar evaluation methods that parse and execute Rhai scripts
    Affected if the application evaluates Rhai scripts via eval APIs
  4. Check if scripts are user-controlled
    Review code paths that feed scripts to the eval functions; determine if untrusted or externally-sourced scripts can be provided
    Affected if untrusted or unbounded scripts can be passed to the Rhai engine's eval functions

Environment is affected if rhai version 1.18.0 is in use and untrusted Rhai scripts can be evaluated through eval_stmt_block, allowing unbounded recursion to trigger stack exhaustion

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update to a patched version of rhai that addresses the recursive call issue, or implement recursion limits/bounds checking in the eval_stmt_block function to prevent unbounded recursion.

Recommended fix Moderate confidence

Check rhai GitHub releases for version greater than 1.18.0 containing the security fix

  1. 1. Identify all deployments using rhai version 1.18.0 in your codebase
  2. 2. Check the rhai GitHub repository for security releases or patches addressing CVE-2024-36760
  3. 3. If a patched version is available, update the dependency in your project (e.g., cargo update, or update version in Cargo.toml)
  4. 4. Rebuild and test the application to ensure the stack overflow vulnerability is remediated
  5. 5. Verify that the eval_stmt_block function no longer causes excessive recursion
Caveat Review release notes between 1.18.0 and the fixed version for any breaking API changes

Generated from the published advisory — verify against the referenced sources before acting.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-36760 in production — separate from our analysis above.

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What this is

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