CVE-2026-71280 go-shiori Server-Side Request Forgery via Unrestricted Bookmark URL Fetch
Attackers can force the server to fetch arbitrary URLs, potentially accessing internal resources or bypassing network restrictions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-71280?
CVE-2026-71280 is a high-severity server-side request forgery vulnerability in go-shiori shiori, published on 5 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
go-shiori's DownloadBookmark (internal/core/download.go) fetches a caller-supplied bookmark URL using a plain http.Client with no custom DialContext or destination-IP validation (no IsLoopback, IsPrivate, IsUnspecified, or IsLinkLocalUnicast checks).
Weakness: CWE-918
Which versions are affected by CVE-2026-71280?
How do I fix CVE-2026-71280?
No fix has been published for CVE-2026-71280 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-71280 being exploited?
There is no known exploitation of CVE-2026-71280 in the wild and no public exploit code.
Sources
Also known as GHSA-5mx2-758c-cg2x.