CVE-2026-32702Cleanuparr has Username Enumeration via Timing Attack
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No exploitation reported and no EPSS estimate yet.
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Cleanuparr is a tool for automating the cleanup of unwanted or blocked files in Sonarr, Radarr, and supported download clients like qBittorrent. From 2.7.0 to 2.8.0, the /api/auth/login endpoint contains a logic flaw that allows unauthenticated remote attackers to enumerate valid usernames by measuring the application's response time. It appears that the hashing function, which is the most time-consuming part of the process by design, occurs as part of the VerifyPassword function. With the short circuits occurring before the hashing function, a timing differential is introduced that exposes validity to the actor. This vulnerability is fixed in 2.8.1.
- CVSS
- 6.9 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-208
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Analyzed
- Record last updated
- Mar 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Cleanuparr Cleanuparr cleanuparr:cleanuparr (from the name) | from 2.7.0, <= 2.8.0 | CNA record |
cleanuparr_project cleanuparr cleanuparr_project:cleanuparr | from 2.7.0 before 2.8.1 | NVD |
References
- https://github.com/Cleanuparr/Cleanuparr/security/advisories/GHSA-gjmf-m27r-2c9vx-refsource-confirm, exploit, mitigation, vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.