CVE-2026-122327

Description

Meelo through 3.13.1 contains a missing authorization vulnerability that allows authenticated non-admin users to modify shared catalog data because RolesGuard does not require Admin on song, track and video write routes. Attackers can send PUT requests to /songs/:idOrSlug, /tracks/:idOrSlug or /videos/:idOrSlug, or POST to /songs/:idOrSlug/merge, to alter genres, reassign tracks and merge songs.

References

• https://github.com/Arthi-chaud/Meelo
• https://github.com/Arthi-chaud/Meelo/blob/v3.13.1/server/src/authentication/roles/roles.guard.ts#L48-L117
• https://github.com/Arthi-chaud/Meelo/blob/v3.13.1/server/src/song/song.controller.ts#L275-L309
• https://github.com/Arthi-chaud/Meelo/blob/v3.13.1/server/src/track/track.controller.ts#L145-L160
• https://github.com/Arthi-chaud/Meelo/blob/v3.13.1/server/src/video/video.controller.ts#L131-L149