Improper authorization in donetick history deletion handler
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Privilege escalation, Security bypass
- Confidentiality · integrity · availability
- None · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-266 and CWE-285.
Summary
donetick up to 0.1.82 has an improper authorization flaw in the CanDeleteHistory function of its history deletion handler (CWE-285). A remote attacker with low privileges can manipulate the AssignedTo argument to delete history entries they should not be able to delete. A public exploit is linked in the references.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
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."
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | donetick | 0.1.0; 0.1.1; 0.1.2; 0.1.3; 0.1.4; 0.1.5; 0.1.6; 0.1.7; 0.1.8; 0.1.9; 0.1.10; 0.1.11; 0.1.12; 0.1.13; 0.1.14; 0.1.15; 0.1.16; 0.1.17; 0.1.18; 0.1.19; 0.1.20; 0.1.21; 0.1.22; 0.1.23; 0.1.24; 0.1.25; 0.1.26; 0.1.27; 0.1.28; 0.1.29; 0.1.30; 0.1.31; 0.1.32; 0.1.33; 0.1.34; 0.1.35; 0.1.36; 0.1.37; 0.1.38; 0.1.39; 0.1.40; 0.1.41; 0.1.42; 0.1.43; 0.1.44; 0.1.45; 0.1.46; 0.1.47; 0.1.48; 0.1.49; 0.1.50; 0.1.51; 0.1.52; 0.1.53; 0.1.54; 0.1.55; 0.1.56; 0.1.57; 0.1.58; 0.1.59; 0.1.60; 0.1.61; 0.1.62; 0.1.63; 0.1.64; 0.1.65; 0.1.66; 0.1.67; 0.1.68; 0.1.69; 0.1.70; 0.1.71; 0.1.72; 0.1.73; 0.1.74; 0.1.75; 0.1.76; 0.1.77; 0.1.78; 0.1.79; 0.1.80; 0.1.81; 0.1.82 | — | No fix listed | CNA |
- donetick Vendor— Affected 0.1.0; 0.1.1; 0.1.2; 0.1.3; 0.1.4; 0.1.5; 0.1.6; 0.1.7; 0.1.8; 0.1.9; 0.1.10; 0.1.11; 0.1.12; 0.1.13; 0.1.14; 0.1.15; 0.1.16; 0.1.17; 0.1.18; 0.1.19; 0.1.20; 0.1.21; 0.1.22; 0.1.23; 0.1.24; 0.1.25; 0.1.26; 0.1.27; 0.1.28; 0.1.29; 0.1.30; 0.1.31; 0.1.32; 0.1.33; 0.1.34; 0.1.35; 0.1.36; 0.1.37; 0.1.38; 0.1.39; 0.1.40; 0.1.41; 0.1.42; 0.1.43; 0.1.44; 0.1.45; 0.1.46; 0.1.47; 0.1.48; 0.1.49; 0.1.50; 0.1.51; 0.1.52; 0.1.53; 0.1.54; 0.1.55; 0.1.56; 0.1.57; 0.1.58; 0.1.59; 0.1.60; 0.1.61; 0.1.62; 0.1.63; 0.1.64; 0.1.65; 0.1.66; 0.1.67; 0.1.68; 0.1.69; 0.1.70; 0.1.71; 0.1.72; 0.1.73; 0.1.74; 0.1.75; 0.1.76; 0.1.77; 0.1.78; 0.1.79; 0.1.80; 0.1.81; 0.1.82 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for donetick.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Timeline
- 2026-10-19 Threatist record created from CVE-2026-112045
- 2026-10-19 Alias added: GHSA-65cq-6v82-827q
- 2026-10-19 CISA SSVC decision points changed
- 2026-10-19 Priority changed: LOW → MEDIUM
References
Sources
- CVE-2026-112045 · CVE Program
- CVE-2026-112045 · NVD
- FIRST EPSS
- GHSA-65cq-6v82-827q · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences