Autobahn Python permessage-deflate bypasses maxMessagePayloadSize after inflation

SummaryAutobahn Python enforces maxMessagePayloadSize against the compressed WebSocket frame length before permessage-deflate inflation, then delivers the inflated message to application callbacks without a second size check. A client frame that is only 22 compressed bytes can inflate to 4096 byt...

Autobahn Python permessage-deflate bypasses maxMessagePayloadSize after inflation

SummaryAutobahn Python enforces maxMessagePayloadSize against the compressed WebSocket frame length before permessage-deflate inflation, then delivers the inflated message to application callbacks without a second size check. A client frame that is only 22 compressed bytes can inflate to 4096 byt...

Rocky Linux 9 [CIQ] Security Update: libsoup / libsoup-debuginfo / libsoup-debugsource / libsoup-devel Multiple Vulnerabilities (crlsa-2026_68234)

The Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-202668234 advisory. SoupWebsocketExtensionDeflate: libsoup: libsoup: WebSocket permessage-deflate Unbounded Decompression Remote Denial of Service CVE-2026-15709 libsoup:...

AlmaLinux 9.2 [TuxCare] Security Update: libsoup / libsoup-devel / libsoup-doc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1790076145)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1790076145 advisory. - A flaw was found in libsoup's WebSocket implementation when using the permessage-deflate extension. The extension's decompression...

Rocky Linux 9.6 [TuxCare] Security Update: libsoup / libsoup-devel / libsoup-doc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1790063765)

The Rocky Linux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1790063765 advisory. - A flaw was found in libsoup's WebSocket implementation when using the permessage-deflate extension. The extension's decompressio...

AlmaLinux 9.6 [TuxCare] Security Update: libsoup / libsoup-devel / libsoup-doc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1790063765)

The AlmaLinux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1790063765 advisory. - A flaw was found in libsoup's WebSocket implementation when using the permessage-deflate extension. The extension's decompression...

AZL-105540 CVE-2026-102560 affecting package libsoup 3.4.4-16

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...

DEBIAN-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...

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...

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...

CVE-2026-102560 Libsoup: libsoup: heap buffer overflow during outgoing permessage-deflate buffer growth

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...

CVE-2026-102560 Libsoup: libsoup: heap buffer overflow during outgoing permessage-deflate buffer growth

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...

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...

EUVD-2026-89105

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...

CVE-2026-102560

A heap buffer overflow vulnerability exists in libsoup within the permessage-deflate WebSocket extension . When processing very large outgoing messages, truncated size calculations for GByteArray growth can wrap, leading zlib to write past the allocated buffer. This issue can impact the availabil...

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...

Linux Distros Unpatched Vulnerability : CVE-2026-102560

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in libsoup. When the permessage-deflate WebSocket extension compresses a very large outgoing message, truncated size calculations used for...

NPM: undici vulnerable to Denial of Service via unhandled error in WebSocket permessage-deflate decompression

NPM: undici vulnerable to Denial of Service via unhandled error in WebSocket permessage-deflate decompression vulnerability discovered by ? in WordPress Npm undici versions = 6.25.0, 6.28.1...

EUVD-2026-71603

undici vulnerable to Denial of Service via unhandled error in WebSocket permessage-deflate decompression...

undici vulnerable to Denial of Service via unhandled error in WebSocket permessage-deflate decompression

Impact undici's WebSocket client including Node.js's bundled globalThis.WebSocket crashes the entire Node.js process when a remote WebSocket peer sends a permessage-deflate compressed message that crosses the decompressed-payload size limit and then contains a malformed DEFLATE block. In...