Cyber ·
USN-8956-1: Brotli flaw can cause denial of service or arbitrary code execution
Ubuntu security notice about a flaw in how Brotli processes certain compressed streams, which may allow a remote attacker to cause denial of service or execute arbitrary code.
Notice USN-8956-1, published on October 26, 2026 in the Ubuntu Security feed, describes a flaw in how Brotli processes certain compressed streams. According to the received text, a remote attacker could possibly exploit this issue to cause denial of service or execute arbitrary code. The content is an automatic translation of the original notice, and the text itself gives no details on affected versions, specific packages or applied fixes. The safe reading is therefore to treat it as an alert that needs confirmation. To check the scope, consult the original notice by its number USN-8956-1 on the official Ubuntu security site, check whether any of your systems use Brotli libraries and follow the update recommendations from the vendor. This record is a security news item, not a guide to using the platform.