CVE-2026-90715 Details
Description
A security vulnerability has been detected in marcobambini Gravity up to 0.9.7. This affects an unknown function of the file src/utils/gravity_json.c of the component udp json-parser. Such manipulation leads to integer overflow. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. Upgrading to version 0.9.8 mitigates this issue. The name of the patch is 9b337c3eae5833c3956bed1fc01c21c14fd443f2. Upgrading the affected component is recommended.
A security vulnerability allowing for integer overflow has been identified in Marcobambini Gravity versions through 0.9.7. The issue arises in the UDP JSON-parser component, specifically within the 'json_parse_ex' function of 'src/utils/gravity_json.c'. This vulnerability can be exploited remotely by sending JSON input containing integer literals with more than 19 significant decimal digits. Such input causes the JSON parser's integer accumulator to overflow, leading to undefined behavior. In builds in which integer overflow is not automatically recovered from, this overflow is detected by the Undefined Behavior Sanitizer, which traps the process with a SIGILL signal.
Users are advised to upgrade to Gravity version 0.9.8, which includes a patch for this vulnerability. The update is available on the official Marcobambini Gravity GitHub repository.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 14, 2026CISA-ADP
Assessed Sep 14, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/marcobambini/gravity/ | [email protected] | Vendor |
| https://github.com/marcobambini/gravity/issues/447 | [email protected] | ExploitIssue TrackingTechnical AnalysisVendor |
| https://github.com/marcobambini/gravity/pull/451 | [email protected] | Issue TrackingVendor |
| https://github.com/marcobambini/gravity/releases/tag/0.9.8 | [email protected] | Release NotesVendor |
| https://github.com/sthagen/marcobambini-gravity/commit/9b337c3eae5833c3956bed1fc01c21c14fd443f2 | [email protected] | |
| https://vuldb.com/cve/CVE-2026-90715 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/919189 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/403269 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/403269/cti | [email protected] | AdvisoryPermission Required |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-189 | Numeric Errors | [email protected] |
| CWE-190 | Integer Overflow or Wraparound | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| marcobambini Gravity | 0.9.7 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 14, 2026 | CVE Modified | CISA-ADP |
| Sep 14, 2026 | New CVE Received | [email protected] |