TI-2026-61671 Aliases CVE-2026-90714 GHSA-27w8-c924-2678

marcobambini Gravity JSON parser gravity_json.c memory corruption

MEDIUM 57CWE-119Published 2026-09-14 · Updated 2026-09-15

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: Low · Low · Low
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

A weakness has been identified in marcobambini Gravity up to 0.9.7. The impacted element is an unknown function of the file src/utils/gravity_json.c of the component JSON parser. This manipulation causes memory corruption. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 0.9.8 is sufficient to resolve this issue. Patch name: 9b337c3eae5833c3956bed1fc01c21c14fd443f2. It is suggested to upgrade the affected component.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00466 40th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix Fixed Gravity (marcobambini): 0.9.8

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
marcobambini	Gravity	0.9.0; 0.9.1; 0.9.2; 0.9.3; 0.9.4; 0.9.5; 0.9.6; 0.9.7	0.9.8	Patch available	CNA

Gravity Vendormarcobambini Affected 0.9.0; 0.9.1; 0.9.2; 0.9.3; 0.9.4; 0.9.5; 0.9.6; 0.9.7 Fixed in 0.9.8 Patch available CNA

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:marcobambini:gravity::::::::	—	—	marcobambini

cpe:2.3:a:marcobambini:gravity:*:*:*:*:*:*:*:* Versions — — ·marcobambini

Remediation

Fix · CNA Gravity (marcobambini) Fixed in 0.9.8

Timeline

2026-10-02 Threatist record created from CVE-2026-90714
2026-10-03 Alias added: GHSA-27w8-c924-2678

References

Exploit 1

https://github.com/marcobambini/gravity/issues/448

Patch 3

Other 1

https://github.com/marcobambini/gravity/

TI-2026-29254 Creolabs Gravity < 0.9.6 Heap Buffer Overflow via gravity_vm_exec CVSS 4.0CRITICAL 9.3
TI-2026-61672 marcobambini Gravity udp json-parser gravity_json.c integer overflow CVSS 4.0MEDIUM 6.9
TI-2026-61673 marcobambini Gravity Number gravity_parser.c parse_number_expression out-of-bounds CVSS 4.0MEDIUM 5.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences