Netty SPDY zlib header block continues decoded expansion after maxHeaderSize truncation

Summary Netty SPDY header decoding continues inflating zlib-compressed header blocks after the raw header parser has already exceeded maxHeaderSize and marked the frame truncated. At commit b2d2137c4404af425bf9d5d601a62576f5c06925, a 12,253-byte compressed SPDY header block can declare and inflat...

CVE-2026-55833 Netty SPDY zlib header block continues decoded expansion after maxHeaderSize truncation

Netty is a network application framework for development of protocol servers and clients. Prior to 4.1.136.Final and 4.2.16.Final, Netty SPDY header decoding continues inflating zlib-compressed header blocks after the raw header parser has exceeded maxHeaderSize and marked the frame truncated in...

CVE-2026-55833

Netty (network application framework) contains a vulnerability in SPDY header decoding. Prior to versions 4.1.136.Final and 4.2.16.Final, the zlib-compressed header blocks may continue inflating after the header parser exceeds maxHeaderSize, allowing a remote peer to send a small compressed HEADE...

CLSA-2026-1773757893 Fix CVE(s): CVE-2025-14847

SECURITY UPDATE: Unauthenticated heap memory disclosure via mismatched zlib compressed protocol headers MongoBleed - debian/patches/CVE-2025-14847.patch: Return actual decompressed size instead of buffer size in ZlibMessageCompressor::decompressData - CVE-2025-14847...

MongoDB 3.6.x / 4.0.x / 4.2.x / 4.4.x < 4.4.30 / 5.0.x < 5.0.32 / 6.0.x < 6.0.27 / 7.0.x < 7.0.28 / 8.0.x < 8.0.17 / 8.2.x < 8.2.3 Uninitialized Heap Memory Leak (CVE-2025-14847)

The version of MongoDB installed on the remote host is 3.6.x, 4.0.x, 4.2.x, 4.4.x prior to 4.4.30, 5.0.x prior to 5.0.32, 6.0.x prior to 6.0.27, 7.0.x prior to 7.0.28, 8.0.x prior to 8.0.17, or 8.2.x prior to 8.2.3. It is, therefore, affected by a uninitialized heap memeory leak vulnerability: -...

FreeBSD : MongoDB -- Improper Handling of Length Parameter Inconsistency (c1613867-df16-11f0-8870-b42e991fc52e)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the c1613867-df16-11f0-8870-b42e991fc52e advisory. https://jira.mongodb.org/browse/SERVER-115508 reports: Mismatched length fields in Zlib compressed...

CVE-2025-14847

Mismatched length fields in Zlib compressed protocol headers may allow a read of uninitialized heap memory by an unauthenticated client. This issue affects all MongoDB Server v7.0 prior to 7.0.28 versions, MongoDB Server v8.0 versions prior to 8.0.17, MongoDB Server v8.2 versions prior to 8.2.3,...

CVE-2025-14847

Mismatched length fields in Zlib compressed protocol headers may allow a read of uninitialized heap memory by an unauthenticated client. This issue affects all MongoDB Server v7.0 prior to 7.0.28 versions, MongoDB Server v8.0 versions prior to 8.0.17, MongoDB Server v8.2 versions prior to 8.2.3,...

CVE-2025-14847

Mismatched length fields in Zlib compressed protocol headers may allow a read of uninitialized heap memory by an unauthenticated client. This issue affects all MongoDB Server v7.0 prior to 7.0.28 versions, MongoDB Server v8.0 versions prior to 8.0.17, MongoDB Server v8.2 versions prior to 8.2.3,...

CVE-2025-14847 Zlib compressed protocol header length confusion may allow memory read

Mismatched length fields in Zlib compressed protocol headers may allow a read of uninitialized heap memory by an unauthenticated client. This issue affects all MongoDB Server v7.0 prior to 7.0.28 versions, MongoDB Server v8.0 versions prior to 8.0.17, MongoDB Server v8.2 versions prior to 8.2.3,...

CVE-2025-14847 Zlib compressed protocol header length confusion may allow memory read

Mismatched length fields in Zlib compressed protocol headers may allow a read of uninitialized heap memory by an unauthenticated client. This issue affects all MongoDB Server v7.0 prior to 7.0.28 versions, MongoDB Server v8.0 versions prior to 8.0.17, MongoDB Server v8.2 versions prior to 8.2.3,...

EUVD-2025-204529

Mismatched length fields in Zlib compressed protocol headers may allow a read of uninitialized heap memory by an unauthenticated client. This issue affects all MongoDB Server v7.0 prior to 7.0.28 versions, MongoDB Server v8.0 versions prior to 8.0.17, MongoDB Server v8.2 versions prior to 8.2.3,...

Zlib compressed protocol header length confusion may allow memory read

Mismatched length fields in Zlib compressed protocol headers may allow a read of uninitialized heap memory by an unauthenticated client. This issue affects all MongoDB Server v7.0 prior to 7.0.28 versions, MongoDB Server v8.0 versions prior to 8.0.17, MongoDB Server v8.2 versions prior to 8.2.3,...

CVE-2025-14847

MongoDB vulnerability CVE-2025-14847 (MongoBleed) arises from mismatched length fields in zlib decompression headers, allowing unauthenticated read of uninitialized heap memory. Affected versions include MongoDB Server 3.6.x and 4.x lines (various latest vulnerable builds), 5.0.x, 6.0.x, 7.0.x, 8...

CVE-2025-14847 Zlib compressed protocol header length confusion may allow memory read

Mismatched length fields in Zlib compressed protocol headers may allow a read of uninitialized heap memory by an unauthenticated client. This issue affects all MongoDB Server v7.0 prior to 7.0.28 versions, MongoDB Server v8.0 versions prior to 8.0.17, MongoDB Server v8.2 versions prior to 8.2.3,...