CVE-2026-123204
Posta before v0.18.0 contains a server-side request forgery vulnerability that allows authenticated users with edit rights to make the backend send POST requests to internal destinations by creating webhooks with arbitrary URLs. Attackers can target loopback, private-network or cloud metadata addresses and read delivery status codes and error strings to probe internal hosts and ports.
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The sources do not list affected products or versions for this vulnerability yet.
0.3%23rd percentile
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Published
First publication at the source
Collected
First seen by Baba Yaga Security