CVE-2026-102559

A heap buffer overflow vulnerability exists in libsoup during the construction of a masked WebSocket client frame . When processing very large outgoing payloads, size values passed to GByteArray allocation APIs may be truncated while the masking routine continues to use the full length. This coul...

CVE-2026-102559 Libsoup: libsoup: heap buffer overflow during websocket client-frame masking

A 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...

EUVD-2026-89104

A 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

A 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 Libsoup: libsoup: heap buffer overflow during websocket client-frame masking

A 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-2026-102558

A heap buffer overflow vulnerability exists in libsoup within the SoupWebsocketConnection component. When the max-incoming-payload-size is set to unlimited (0), an attacker can provide a controlled frame length that causes the length to wrap during the growth of the incoming GByteArray . This res...

CVE-2026-102558 Libsoup: libsoup: heap buffer overflow during websocket receive-buffer growth

A flaw was found in libsoup. When max-incoming-payload-size is unlimited 0, SoupWebsocketConnection could grow its incoming GByteArray based on an attacker-controlled frame length until the length wrapped, causing a heap buffer overflow while reading frame data...

EUVD-2026-89103

A flaw was found in libsoup. When max-incoming-payload-size is unlimited 0, SoupWebsocketConnection could grow its incoming GByteArray based on an attacker-controlled frame length until the length wrapped, causing a heap buffer overflow while reading frame data...

CVE-2026-102558

A flaw was found in libsoup. When max-incoming-payload-size is unlimited 0, SoupWebsocketConnection could grow its incoming GByteArray based on an attacker-controlled frame length until the length wrapped, causing a heap buffer overflow while reading frame data...

CVE-2026-102558 Libsoup: libsoup: heap buffer overflow during websocket receive-buffer growth

A flaw was found in libsoup. When max-incoming-payload-size is unlimited 0, SoupWebsocketConnection could grow its incoming GByteArray based on an attacker-controlled frame length until the length wrapped, causing a heap buffer overflow while reading frame data...

CVE-2026-102560

A flaw was found in libsoup. When the permessage-deflate WebSocket extension compresses a very large outgoing message, truncated size calculations used for GByteArray growth could wrap, causing zlib to write past the allocated buffer and resulting in a heap buffer overflow. Mitigation To mitigate...

CVE-2026-102559

A 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. Mitigation To mitigate this...

CVE-2026-102558

A flaw was found in libsoup. When max-incoming-payload-size is unlimited 0, SoupWebsocketConnection could grow its incoming GByteArray based on an attacker-controlled frame length until the length wrapped, causing a heap buffer overflow while reading frame data. Mitigation To mitigate this...

CVE-2026-102555

A heap buffer overflow exists in libsoup within the soup_uri_decode_data_uri() function. The vulnerability occurs because the function incorrectly treats base64 data-URI payloads as NUL-terminated strings when invoking g_base64_decode_inplace() . If a percent-decoded payload contains embedded NUL...

CVE-2026-102555 Libsoup: libsoup: heap buffer overflow via uninitialized length in data-uri base64 decoding

A flaw was found in libsoup. The soupuridecodedatauri function incorrectly treated base64 data-URI payloads as NUL-terminated strings when calling gbase64decodeinplace. If the percent-decoded payload contained embedded NUL bytes, the decoded length could remain uninitialized and be used as the si...

CVE-2026-102555 Libsoup: libsoup: heap buffer overflow via uninitialized length in data-uri base64 decoding

A flaw was found in libsoup. The soupuridecodedatauri function incorrectly treated base64 data-URI payloads as NUL-terminated strings when calling gbase64decodeinplace. If the percent-decoded payload contained embedded NUL bytes, the decoded length could remain uninitialized and be used as the si...

CVE-2026-102557 Libsoup: libsoup: heap buffer overflow during websocket message reassembly

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 th...

CVE-2026-102557 Libsoup: libsoup: heap buffer overflow during websocket message reassembly

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 th...

CVE-2026-102557

A heap buffer overflow exists in libsoup during the reassembly of fragmented WebSocket messages into a GByteArray . The vulnerability occurs because the implementation fails to adequately cap the total message size against the underlying buffer type's limits. A remote peer can send fragments that...

CVE-2026-102556

A heap buffer overflow vulnerability exists in libsoup due to a signal type confusion during the handling of incoming WebSocket Pong frames. Specifically, SoupWebsocketConnection emits the ::pong signal with a GByteArray pointer despite being declared to pass a GBytes object. Applications that co...