CVE-2025-52571 Hikka vulnerable to RCE through edits in a channel

Critical 9.7 Published Updated

An unauthenticated attacker can bypass authentication to take over a victim's Telegram account and execute code on the server.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-52571?

CVE-2025-52571 is a critical authentication bypass vulnerability in hikariatama Hikka, published on 24 Jun 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Hikka is a Telegram userbot. A vulnerability affects all users of versions below 1.6.2, including most of the forks. It allows an unauthenticated attacker to gain access to Telegram account of a victim, as well as full access to the server. The issue is patched in version 1.6.2. No known workarounds are available.

Weakness: CWE-287

Which versions are affected by CVE-2025-52571?

How do I fix CVE-2025-52571?

No fix has been published for CVE-2025-52571 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2025-52571 being exploited?

There is no known exploitation of CVE-2025-52571 in the wild and no public exploit code.

Sources

Also known as GHSA-vwpq-wm8w-44wf.

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