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@renovate renovate bot commented Mar 5, 2024

This PR contains the following updates:

Package Change Age Confidence
jsonata (source) 2.0.3 -> 2.0.4 age confidence

GitHub Vulnerability Alerts

CVE-2024-27307

Impact

In JSONata versions >= 1.4.0, < 1.8.7 and >= 2.0.0, < 2.0.4, a malicious expression can use the transform operator to override properties on the Object constructor and prototype. This may lead to denial of service, remote code execution or other unexpected behavior in applications that evaluate user-provided JSONata expressions.

Patch

This issue has been fixed in JSONata versions >= 1.8.7 and >= 2.0.4. Applications that evaluate user-provided expressions should update ASAP to prevent exploitation. The following patch can be applied if updating is not possible.

--- a/src/jsonata.js
+++ b/src/jsonata.js
@&#8203;@&#8203; -1293,6 +1293,13 @&#8203;@&#8203; var jsonata = (function() {
                 }
                 for(var ii = 0; ii < matches.length; ii++) {
                     var match = matches[ii];
+                    if (match && (match.isPrototypeOf(result) || match instanceof Object.constructor)) {
+                        throw {
+                            code: "D1010",
+                            stack: (new Error()).stack,
+                            position: expr.position
+                        };
+                    }
                     // evaluate the update value for each match
                     var update = await evaluate(expr.update, match, environment);
                     // update must be an object
@&#8203;@&#8203; -1539,7 +1546,7 @&#8203;@&#8203; var jsonata = (function() {
                 if (typeof err.token == 'undefined' && typeof proc.token !== 'undefined') {
                     err.token = proc.token;
                 }
-                err.position = proc.position;
+                err.position = proc.position || err.position;
             }
             throw err;
         }
@&#8203;@&#8203; -1972,6 +1979,7 @&#8203;@&#8203; var jsonata = (function() {
         "T1007": "Attempted to partially apply a non-function. Did you mean $?",
         "T1008": "Attempted to partially apply a non-function",
         "D1009": "Multiple key definitions evaluate to same key: ",
+        "D1010": "Attempted to access the Javascript object prototype", // Javascript specific 
         "T1010": "The matcher function argument passed to function  does not return the correct object structure",
         "T2001": "The left side of the  operator must evaluate to a number",
         "T2002": "The right side of the  operator must evaluate to a number",

References

https://github.com/jsonata-js/jsonata/releases/tag/v2.0.4

Credit

Thank you to Albert Pedersen of Cloudflare for disclosing this issue.


Release Notes

jsonata-js/jsonata (jsonata)

v2.0.4

Compare Source

  • Prevent writing to the object prototype or constructor (PR #​676)
  • Add upper/lower presentation format for am/pm in fromMillis (PR #​644)
  • Various documentation additions and corrections

Configuration

📅 Schedule: Branch creation - "" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.


  • If you want to rebase/retry this PR, check this box

This PR was generated by Mend Renovate. View the repository job log.

@renovate renovate bot added dependencies Pull requests that update a dependency file help wanted Extra attention is needed labels Mar 5, 2024
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renovate bot commented Mar 5, 2024

Branch automerge failure

This PR was configured for branch automerge. However, this is not possible, so it has been raised as a PR instead.


  • Branch has one or more failed status checks

@renovate renovate bot force-pushed the renovate/npm-jsonata-vulnerability branch from 8df60d9 to 2e423fd Compare August 10, 2025 12:31
@renovate renovate bot force-pushed the renovate/npm-jsonata-vulnerability branch from 2e423fd to 0b5d6b3 Compare September 25, 2025 16:45
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