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Description

Cronicle is a multi-server task scheduler and runner, with a web based front-end UI. Prior to 0.9.111, jb child processes can include an update_event key in their JSON output. The server applies this directly to the parent event's stored configuration without any authorization check. A low-privilege user who can create and run events can modify any event property, including webhook URLs and notification emails. This vulnerability is fixed in 0.9.111.

PUBLISHED Reserved 2026-04-06 | Published 2026-04-07 | Updated 2026-04-08 | Assigner GitHub_M




MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Problem types

CWE-862: Missing Authorization

Product status

< 0.9.111
affected

References

github.com/...onicle/security/advisories/GHSA-5j3v-cq96-xw6v exploit

github.com/...onicle/security/advisories/GHSA-5j3v-cq96-xw6v

cve.org (CVE-2026-39401)

nvd.nist.gov (CVE-2026-39401)

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