CVE-2026-107781 Dromara Skyeye Unauthenticated SSRF and File Overwrite via editUploadOfficeFileById

Critical 9.1 Published Updated

Unauthenticated attackers can exploit SSRF to fetch internal URLs and overwrite user files in Dromara Skyeye, leading to data exposure and modification.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-107781?

CVE-2026-107781 is a critical server-side request forgery vulnerability in dromara skyeye, published on 8 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Dromara Skyeye through commit 003549ae5615bd114ba5bb8ddf6a8e8ead97c321 contains a server-side request forgery and missing authorization vulnerability in the OnlyOffice save callback editUploadOfficeFileById. Unauthenticated attackers can supply arbitrary url and key parameters to make the server fetch internal URLs and overwrite any user's stored file, then read results via queryFileToShowById.

Weakness: CWE-918

Which versions are affected by CVE-2026-107781?

How do I fix CVE-2026-107781?

No fix has been published for CVE-2026-107781 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-2026-107781 being exploited?

There is no known exploitation of CVE-2026-107781 in the wild and no public exploit code.

Sources

Also known as GHSA-75ff-jv7p-vv6j.

Is CVE-2026-107781 in your software?

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