CVE-2026-111720

fish-island-backend through commit 7c61b78 SSRF via /api/web/parse

Published Oct 16, 2026 CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Lhccong
Lhccong fish-island-backend
Vendors & Products Lhccong
Lhccong fish-island-backend
Type Values Removed Values Added
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.
Title fish-island-backend through commit 7c61b78 SSRF via /api/web/parse
Weaknesses CWE-918
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 6.9, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 19, 2026, 2:13 PM
Reserved
Oct 16, 2026, 2:33 PM
Status
Deferred
Published
Oct 16, 2026, 6:17 PM
Modified
Oct 19, 2026, 3:16 PM