CVE-2026-5205 chatwoot Webhook API trigger.rb Trigger server-side request forgery
Remote attackers can exploit a server-side request forgery vulnerability in the Chatwoot webhook API to access internal resources.
- 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-2026-5205?
CVE-2026-5205 is a medium-severity server-side request forgery vulnerability in chatwoot, published on 31 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was identified in chatwoot up to 4.11.2. Affected by this vulnerability is the function Webhooks::Trigger in the library lib/webhooks/trigger.rb of the component Webhook API. Such manipulation of the argument url leads to server-side request forgery. The attack can be launched remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Weakness: CWE-918
Which versions are affected by CVE-2026-5205?
How do I fix CVE-2026-5205?
No fix has been published for CVE-2026-5205 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-2026-5205 being exploited?
There is no known exploitation of CVE-2026-5205 in the wild and no public exploit code.
Sources
Also known as GHSA-rphr-fw27-85gg.