Auth bypass in Donetick
CVE-2026-112045
A vulnerability was detected in donetick up to 0.1.82. The impacted element is the function CanDeleteHistory of the file internal/chore/model/model.go of the component History Deletion Handler. The manipulation of the argument AssignedTo results in improper authorization. The attack can be launched remotely. The exploit is now public and may be used. The project maintainer explains: "The concerns about "IDOR" framing seem to be overstated in my opinion (...), as Circle members are already trusted collaborators. We will address this issue. However, since the impact is limited to trusted members within the same circle, I would classify this as a bug rather than a security vulnerability."
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Donetick — versions 0.1.0, 0.1.1, 0.1.10
Weakness classification (CWE)
References
- vuldb.com/vuln/421693 (technical-description, vdb-entry)
- vuldb.com/vuln/421693/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-112045 (third-party-advisory)
- vuldb.com/submit/1009027 (third-party-advisory)
- github.com/donetick/donetick/issues/711 (issue-tracking, exploit)
- github.com/donetick/donetick/security/advisories/GHSA-c545-2whr-g2v6 (broken-link)
- github.com/donetick/donetick/ (product)
Frequently asked questions
- What is CVE-2026-112045?
- CVE-2026-112045 is a medium-severity vulnerability in Donetick, classified under Incorrect Privilege Assignment. CVSS score: 5.4/10. Published 2026-10-19.
- How severe is CVE-2026-112045?
- Medium severity. CVSS v3 base score is 5.4 out of 10.