CVE-2026-102557
A flaw was found in libsoup. When reassembling fragmented WebSocket messages into a GByteArray, libsoup did not adequately cap total message size against the limits of the underlying buffer type. A remote peer could send fragments that caused size truncation while the implementation still used the full length, leading to heap corruption or a crash.
- Published Sep 29, 2026
- CVSS 8.6 high
- 0.2% chance of exploitation in the next 30 days (EPSS)