CVE-2026-5538
MEDIUMQingdaoU OnlineJudge judge_server_heartbeat Endpoint JudgeServer.service_url server-side request forgery
Title source: cnaDescription
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.
Scores
CVSS v3
6.3
EPSS
0.0004
EPSS Percentile
11.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-918
Status
published
Products (2)
QingdaoU/OnlineJudge
1.6.0
QingdaoU/OnlineJudge
1.6.1
Published
Apr 05, 2026
Tracked Since
Apr 05, 2026