CVE-2026-77640

tor before 0.4.9.9 was prone to an infinite loop when decompressing a truncated zlib/gzip stream with done=1. A truncated stream never reaches ZSTREAMEND, causing zlib to return ZBUFERROR with no input remaining, which bufaddcompress mistook for a full output buffer and retried forever. Fixed by...

CVE-2026-77640

tor versions before 0.4.9.9 are vulnerable to a denial of service via an infinite loop during decompression of a truncated zlib/gzip stream. When a truncated stream is processed with done=1, zlib returns Z_BUF_ERROR with no input remaining, which buf_add_compress() incorrectly interprets as a ful...

PT-2026-79150

tor before 0.4.9.9 was prone to an infinite loop when decompressing a truncated zlib/gzip stream with done=1. A truncated stream never reaches Z STREAM END, causing zlib to return Z BUF ERROR with no input remaining, which buf add compress mistook for a full output buffer and retried forever. Fix...

CVE-2026-44254

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 1.0.0 until 4.14.6 and 5.0.0-beta2, HandleSecureMessage in src/remoted/secure.c passes a pointer inside its stack buffer to ReadSecMSG, and src/oscrypto/shared/msgs.c decompresses up to OSMAXSTR byt...

CVE-2026-44254 Wazuh: Stack Out-of-Bounds Write in remoted Decompression Path

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 1.0.0 until 4.14.6 and 5.0.0-beta2, HandleSecureMessage in src/remoted/secure.c passes a pointer inside its stack buffer to ReadSecMSG, and src/oscrypto/shared/msgs.c decompresses up to OSMAXSTR byt...

CVE-2026-74767

Pandora contains a denial-of-service vulnerability in its handling of DAA Direct Access Archive files. When extracting the internal ISO image from a DAA archive, compressed chunks were decompressed using zlib.decompress without enforcing a limit on the resulting uncompressed data. An attacker abl...

CVE-2026-70631 FFmpeg 0.5 < 9.0 Uninitialized Heap Memory Read in TIFF Decoder

FFmpeg versions from 0.5 up to, but not including, 9.0 contain an uninitialized heap memory disclosure vulnerability in the native TIFF decoder in libavcodec/tiff.c. An attacker who can cause FFmpeg to decode a crafted TIFF file can supply a valid Deflate-compressed strip that terminates...

PT-2026-68786

Name of the Vulnerable Software and Affected Versions FFmpeg versions 3.0 through 8.x Description An uninitialized heap memory read exists in the native Screenpresso decoder libavcodec/screenpresso.c. An attacker can recover sensitive memory contents, such as userspace addresses from persistent...

CVE-2026-66913

The CVE-2026-66913 vulnerability affects Lookyloo when processing uploaded captures and API submissions containing gzip/zlib-compressed HAR data. The root cause is unbounded decompressed size during in-memory processing of ZIP/gzip/zlib content, enabling a zip bomb to exhaust memory and disrupt s...

CVE-2026-66913

Lookyloo did not enforce limits on the decompressed size of uploaded capture archives and compressed HAR files. An attacker could submit a specially crafted ZIP, gzip, or zlib-compressed capture containing data that expands to a very large size during processing. Because the application...

EUVD-2026-49768

Lookyloo did not enforce limits on the decompressed size of uploaded capture archives and compressed HAR files. An attacker could submit a specially crafted ZIP, gzip, or zlib-compressed capture containing data that expands to a very large size during processing. Because the application...

CVE-2026-66913 Zip Bomb in Lookyloo Capture Upload Allows Denial of Service

Lookyloo did not enforce limits on the decompressed size of uploaded capture archives and compressed HAR files. An attacker could submit a specially crafted ZIP, gzip, or zlib-compressed capture containing data that expands to a very large size during processing. Because the application...

BIT-THRIFT-2026-49158 Apache Thrift: Ruby THeaderTransport ZLIB Decompression Bomb

Improper Handling of Highly Compressed Data Data Amplification vulnerability in Apache Thrift Ruby bindings. This issue affects Apache Thrift: before 0.24.0. Users are recommended to upgrade to version 0.24.0, which fixes the issue...

BIT-THRIFT-2026-41608 Apache Thrift: Unbounded Zlib Decompression in Python THeaderTransport

Improper Handling of Highly Compressed Data Data Amplification vulnerability in Apache Thrift Python bindings. This issue affects Apache Thrift: before 0.24.0. Users are recommended to upgrade to version 0.24.0, which fixes the issue...

CVE-2026-49158

CVE-2026-49158 describes an Improper Handling of Highly Compressed Data (Data Amplification) in the Apache Thrift Ruby bindings (THeaderTransport). The issue affects Thrift versions before 0.24.0. The vulnerability allows amplification of data via ZLIB decompression, which can impact availability...

CVE-2026-49158 Apache Thrift: Ruby THeaderTransport ZLIB Decompression Bomb

Improper Handling of Highly Compressed Data Data Amplification vulnerability in Apache Thrift Ruby bindings. This issue affects Apache Thrift: before 0.24.0. Users are recommended to upgrade to version 0.24.0, which fixes the issue...

CVE-2026-41608 Apache Thrift: Unbounded Zlib Decompression in Python THeaderTransport

Improper Handling of Highly Compressed Data Data Amplification vulnerability in Apache Thrift Python bindings. This issue affects Apache Thrift: before 0.24.0. Users are recommended to upgrade to version 0.24.0, which fixes the issue...

CVE-2026-41608 Apache Thrift: Unbounded Zlib Decompression in Python THeaderTransport

Improper Handling of Highly Compressed Data Data Amplification vulnerability in Apache Thrift Python bindings. This issue affects Apache Thrift: before 0.24.0. Users are recommended to upgrade to version 0.24.0, which fixes the issue...

Use of Uninitialized Resource

Overview Affected versions of this package are vulnerable to Use of Uninitialized Resource in the zlibdecomp function when processing a zlib stream that inflates to fewer bytes than the expected frame size. An attacker can access uninitialized heap memory contents by supplying a crafted zlib...

CVE-2026-66038

FFmpeg through 8.1.2, fixed in commit 8670835, contains an information disclosure vulnerability in the LCL/ZLIB video decoder that allows attackers to expose uninitialized heap memory by supplying a valid zlib stream that inflates to fewer bytes than the expected frame size. The zlibdecomp functi...