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TI-2026-25194 Aliases CVE-2026-32702

Cleanuparr has Username Enumeration via Timing Attack

Priority HIGH 70CWE-208Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-208.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00334 26th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CleanuparrCleanuparr2.7.0 – 2.8.0—No fix listedCNA
  • Cleanuparr VendorCleanuparr Affected 2.7.0 – 2.8.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cleanuparr_project:cleanuparr:*:*:*:*:*:*:*:*2.7.0 to before 2.8.1VulnerableCleanuparr Project
  • cpe:2.3:a:cleanuparr_project:cleanuparr:*:*:*:*:*:*:*:* Versions 2.7.0 to before 2.8.1 Vulnerable ·Cleanuparr Project

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-32702

References

Exploit 1

  • TI-2026-32162 Authentication bypass by spoofing in Cleanuparr CVSS 3.1CRITICAL 9.8
  • TI-2026-32163 Cleanuparr: Reflective CORS combined with trusted-network auth allows cross-origin admin API reads CVSS 3.1HIGH 8.0

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences