CVE-2026-85534Medium· 5.9▾ SunlitA flaw was found in libsoup. When a client sends an HTTP/2 request body from a non-pollable input stream, the library can buffer more data than the current flow-control window later allows. A malicious HTTP/2 server can shrink SETTINGS_I…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 32.5 · likelihood 0.1 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Exploit-prediction probability, daily snapshots since Sep 8.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.3%
0.3% → 0.5%
A flaw was found in libsoup. When a client sends an HTTP/2 request body from a non-pollable input stream, the library can buffer more data than the current flow-control window later allows. A malicious HTTP/2 server can shrink SETTINGS_INITIAL_WINDOW_SIZE while that buffered read is still in progress. The client then copies the full buffer into a smaller DATA callback without a runtime bounds check, which can abort the process or fail the HTTP/2 session.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2025-12131Medium· 6.5A truncated 802.15.4 packet can lead to an assert, resulting in a denial of service.
CVE-2023-38469Medium· 6.2Reachable assertion in avahi_dns_packet_append_record
CVE-2023-38470Medium· 6.2Reachable assertion in avahi_escape_label
CVE-2023-38471Medium· 6.2Reachable assertion in dbus_set_host_name
CVE-2023-38472Medium· 6.2Reachable assertion in avahi_rdata_parse
CVE-2023-38473Medium· 6.2Reachable assertion in avahi_alternative_host_name