CVE-2026-108580

AniWorld Downloader before 5.3.0 contains an improper restriction of authentication attempts vulnerability in the WebUI /login POST handler that allows unauthenticated attackers to guess passwords without throttling. Attackers can enumerate usernames through verify_user response timing and brute-force passwords on exposed WebUI instances to take over accounts.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/phoenixthrush/AniWorld-Downloader/blob/bb13599d17937fdb4df2df699024bc233f0656f2/src/aniworld/web/auth.py#L239-L256
https://github.com/phoenixthrush/AniWorld-Downloader/commit/3c070bd10665377308a3092e11933681c18a5fd1
https://github.com/phoenixthrush/AniWorld-Downloader/issues/334
https://github.com/phoenixthrush/AniWorld-Downloader/releases/tag/v.5.3.0
https://hackmd.io/@haind/aniworld-login-brute-force
https://www.vulncheck.com/advisories/aniworld-downloader-before-5.3.0-webui-login-brute-force-via-login

Configurations

No configuration.

History

10 Oct 2026, 16:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-10 16:16

Updated : 2026-10-16 19:21

NVD link : CVE-2026-108580

Mitre link : CVE-2026-108580

CVE.ORG link : CVE-2026-108580

JSON object : View

Products Affected

No product.

CWE

CWE-307

Improper Restriction of Excessive Authentication Attempts

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