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[ CVE-2026-111720 · Published 16 Oct 2026 ]

Vulnerability in lhccong fish-island-backend

CVSS 5.3 EPSS <1%No fix listed yet

[ Why it matters ]Priority signals

  • Public proof-of-concept exploit exists (CISA SSVC)

[ Description ]Official description

fish-island-backend through commit 7c61b78 contains an unauthenticated server-side request forgery vulnerability that allows remote attackers to make the server fetch attacker-supplied URLs via the url parameter of GET /api/web/parse. Attackers can target internal hosts, loopback services or cloud metadata endpoints through redirect-following OkHttp requests and read back page titles, meta descriptions and favicons.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References