Stack overflow in rustc_serialize when parsing deeply nested JSON
What to do
Vendor response not established. Follow the primary source's mitigation guidance and check back for a fix.
This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.
Affected packages
crates.io rustc-serialize
- Affected
- <= 0.3.24
- Fixed in
- no fixed version recorded
Sources
- GitHub Advisory Database and maintainer security advisories on GitHub
GitHub-reviewed advisory GHSA-2226-4v3c-cff8 lists affected ranges: crates.io rustc-serialize >=0 <=0.3.24
VerifiedObserved Structured GitHub Advisory Database record (type=reviewed) from the GitHub REST API.
Severity and exploitation
- Exploitation
- No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
- CVSS
- not scored
- EPSS
- No dated EPSS signal available.
Source description
As published by the source; long descriptions are shortened.
When parsing JSON using json::Json::fromstr, there is no limit to the depth of the stack, therefore deeply nested objects can cause a stack overflow, which aborts the process. Example code that triggers the vulnerability is serde is recommended as a replacement to rustcserialize.
Dates and revisions
- Published by the source
- Last modified by the source
- Source last checked
- Revision 1 · created ·
Published from ghsa record GHSA-2226-4v3c-cff8
Agent brief
Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.
# Patch Next advisory brief: GHSA-2226-4v3c-cff8 Advisory: Stack overflow in rustc_serialize when parsing deeply nested JSON IDs: GHSA-2226-4v3c-cff8 Record: https://patchnext.com/advisories/ghsa-2226-4v3c-cff8 (revision 1, source checked 26 Oct 2026, 15:33 UTC) Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected. Severity: Unrated Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV. Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed. ## Affected components - crates.io rustc-serialize: affected <= 0.3.24 ## Suggested inspection (read-only) - crates.io rustc-serialize: check the installed version with your package manager. ## Supported action No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything. ## Required regression checks - Run the test suite and a production build. - Exercise the features that depend on rustc-serialize. - Repeat the inspection and confirm that only fixed versions remain installed. ## Rollback considerations - Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward. ## Unresolved questions - Which deployments run an affected version? - Exploitation status can change. Check again before lowering the priority. - Mark the work resolved only after the fixed version is verified in production. ## Sources - Verified: https://github.com/advisories/GHSA-2226-4v3c-cff8 (GitHub-reviewed advisory GHSA-2226-4v3c-cff8 lists affected ranges: crates.io rustc-serialize >=0 <=0.3.24) Commands are suggestions: review each one before running it.
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