{"id":"OESA-2026-4669","summary":"libsoup security update","details":"libsoup is an HTTP client/server library for GNOME. It uses GObjects and the glib main loop, to integrate well with GNOME applications, and also has a synchronous API, for use in threaded applications.\r\n\r\nSecurity Fix(es):\n\nA flaw was found in libsoup. When handling an incoming WebSocket Pong frame, SoupWebsocketConnection emitted the ::pong signal with a GByteArray pointer even though the signal is declared to pass a GBytes. Applications connecting a handler that follows the documented GBytes API can trigger heap corruption or a crash upon receiving a crafted Pong.(CVE-2026-102556)\n\nA 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.(CVE-2026-102557)\n\nA flaw was found in libsoup. When constructing a masked WebSocket client frame for a very large outgoing payload, size values passed to GByteArray allocation APIs could be truncated while the masking routine still used the full length, causing a heap buffer overflow.(CVE-2026-102559)","modified":"2026-11-04T14:00:04.825077084Z","published":"2026-11-04T13:54:18Z","upstream":["CVE-2026-102556","CVE-2026-102557","CVE-2026-102559"],"database_specific":{"severity":"High"},"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4669"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102556"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102557"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102559"}],"affected":[{"package":{"name":"libsoup","ecosystem":"openEuler:24.03-LTS-SP1","purl":"pkg:rpm/openEuler/libsoup&distro=openEuler-24.03-LTS-SP1"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.74.3-31.oe2403sp1"}]}],"ecosystem_specific":{"src":["libsoup-2.74.3-31.oe2403sp1.src.rpm"],"x86_64":["libsoup-2.74.3-31.oe2403sp1.x86_64.rpm","libsoup-debuginfo-2.74.3-31.oe2403sp1.x86_64.rpm","libsoup-debugsource-2.74.3-31.oe2403sp1.x86_64.rpm","libsoup-devel-2.74.3-31.oe2403sp1.x86_64.rpm"],"aarch64":["libsoup-2.74.3-31.oe2403sp1.aarch64.rpm","libsoup-debuginfo-2.74.3-31.oe2403sp1.aarch64.rpm","libsoup-debugsource-2.74.3-31.oe2403sp1.aarch64.rpm","libsoup-devel-2.74.3-31.oe2403sp1.aarch64.rpm"],"noarch":["libsoup-help-2.74.3-31.oe2403sp1.noarch.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2026-4669.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H"}]}