Findings

CVE-2026-5538

A vulnerability was detected in QingdaoU OnlineJudge up to 1.6.1.

Published Apr 5, 2026 · updated Jul 24, 2026

A vulnerability was detected in QingdaoU OnlineJudge up to 1.6.1. Affected by this issue is the function service_url of the file JudgeServer.service_url of the component judge_server_heartbeat Endpoint. The manipulation results in server-side request forgery. It is possible to launch the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way.

Code

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Timeline

Detection, updates, and resolution for this record.

  1. Apr 5, 2026 · NIST NVD

    Detected

    A vulnerability was detected in QingdaoU OnlineJudge up to 1.6.1. Affected by this issue is the function service_url of the file JudgeServer.service_url of the component judge_server_heartbeat Endpoint. The manipulation results in server-side request forgery. It is possible to launch the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way.

  2. Jul 24, 2026 · NIST NVD

    Updated

    A vulnerability was detected in QingdaoU OnlineJudge up to 1.6.1. Affected by this issue is the function service_url of the file JudgeServer.service_url of the component judge_server_heartbeat Endpoint. The manipulation results in server-side request forgery. It is possible to launch the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way.

Sources

  • CVE.orgVulnerability recordCVE-2026-5538

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-5538

    A vulnerability was detected in QingdaoU OnlineJudge up to 1.6.1. Affected by this issue is the function service_url of the file JudgeServer.service_url of the component judge_server_heartbeat Endpoint. The manipulation results in server-side request forgery. It is possible to la

    nvd.nist.gov

References