Envoy Gateway: Wasm HTTP fetch decompresses gzip without output-size limit

Vulnerability report without repro case. Repro case may be added later after harness is complete. Preconditions 4: - Tenant can create EnvoyExtensionPolicy baseline - Attacker hosts a gzip-bomb at a reachable URL - sha256 unset optional field; check is post-decompression anyway - No operator...

CVE-2026-49855

Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.6, Tornado gzip decompression routines processed limited-size chunks but did not enforce an overall limit on accumulated decompressed chunks, allowing a malicious server accessed by SimpleAsyncHTTPClient or an...

DEBIAN-CVE-2026-49855

Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.6, Tornado gzip decompression routines processed limited-size chunks but did not enforce an overall limit on accumulated decompressed chunks, allowing a malicious server accessed by SimpleAsyncHTTPClient or an...

CVE-2026-49855

Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.6, Tornado gzip decompression routines processed limited-size chunks but did not enforce an overall limit on accumulated decompressed chunks, allowing a malicious server accessed by SimpleAsyncHTTPClient or an...

UBUNTU-CVE-2026-49855

Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.6, Tornado gzip decompression routines processed limited-size chunks but did not enforce an overall limit on accumulated decompressed chunks, allowing a malicious server accessed by SimpleAsyncHTTPClient or an...

CVE-2026-49855

Tornado (Python) prior to 6.5.6 allows a malicious server accessed via SimpleAsyncHTTPClient or an HTTPServer with decompress_request=True to accumulate decompressed data without an overall size limit, potentially causing memory exhaustion. Affected is gzip decompression routines that previously ...

CVE-2026-49855 tornado AsyncHTTPClient accumulates decompressed chunks without size limit (gzip bomb)

Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.6, Tornado gzip decompression routines processed limited-size chunks but did not enforce an overall limit on accumulated decompressed chunks, allowing a malicious server accessed by SimpleAsyncHTTPClient or an...

CVE-2026-49855

Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.6, Tornado gzip decompression routines processed limited-size chunks but did not enforce an overall limit on accumulated decompressed chunks, allowing a malicious server accessed by SimpleAsyncHTTPClient or an...

PYSEC-2026-2776 Open Babel has out-of-bounds write (overlapping memcpy) in zipstream basic_unzip_streambuf::underflow

Summary A memory-safety vulnerability in Open Babel's bundled zipstream decompression code caused an out-of-bounds write via overlapping memcpy when reading a crafted gzip-compressed chemistry file. Details The flaw was in basicunzipstreambuf::underflow. The decompression buffer refill path invok...

PYSEC-2026-3389 tornado AsyncHTTPClient accumulates decompressed chunks without size limit (gzip bomb)

Tornado's gzip decompression routines work in limited-size chunks, but have no overall limit for the total size of decompressed chunks that they will accumulate There has always been a limit for the total compressed size. This allows a malicious server to consume effectively unlimited amounts of...

SUSE CVE-2026-59939

httplib2 is a comprehensive HTTP client library for Python. Prior to 0.32.0, httplib2 performs unbounded decompression of HTTP response bodies encoded with Content-Encoding: gzip or deflate in decompressContent in httplib2/init.py, allowing a malicious or compromised HTTP server to return a small...

CVE-2026-44160 Fluentd: Denial of Service (DoS) via Gzip Decompression Bomb in `in_http` and `in_forward`

Fluentd collects events from various data sources and writes them to files, RDBMS, NoSQL, IaaS, SaaS, Hadoop and so on. Prior to 1.19.3, Fluentd's inhttp and inforward plugins support gzip-compressed data but enforce limits only on compressed payloads through settings such as bodysizelimit and...

CVE-2026-59803

rpcx through 1.9.3, fixed in commit 047aec1, contains a denial-of-service vulnerability in protocol.Message.Decode protocol/message.go. When a message has the compression flag set, the payload is gzip-decompressed via util.Unzip with no limit on the decompressed output size. The only built-in siz...

CVE-2026-59803 rpcx - Denial of Service via Gzip Decompression Bomb in Wire Protocol

rpcx through 1.9.3, fixed in commit 047aec1, contains a denial-of-service vulnerability in protocol.Message.Decode protocol/message.go. When a message has the compression flag set, the payload is gzip-decompressed via util.Unzip with no limit on the decompressed output size. The only built-in siz...

EUVD-2026-42372

rpcx through 1.9.3, fixed in commit 047aec1, contains a denial-of-service vulnerability in protocol.Message.Decode protocol/message.go. When a message has the compression flag set, the payload is gzip-decompressed via util.Unzip with no limit on the decompressed output size. The only built-in siz...

CVE-2026-59803

rpcx through 1.9.3, fixed in commit 047aec1, contains a denial-of-service vulnerability in protocol.Message.Decode protocol/message.go. When a message has the compression flag set, the payload is gzip-decompressed via util.Unzip with no limit on the decompressed output size. The only built-in siz...

CVE-2026-59803 rpcx - Denial of Service via Gzip Decompression Bomb in Wire Protocol

rpcx through 1.9.3, fixed in commit 047aec1, contains a denial-of-service vulnerability in protocol.Message.Decode protocol/message.go. When a message has the compression flag set, the payload is gzip-decompressed via util.Unzip with no limit on the decompressed output size. The only built-in siz...

CVE-2026-59939 httplib2: Decompression Bomb Denial of Service via Unbounded gzip/deflate Response Handling

httplib2 is a comprehensive HTTP client library for Python. Prior to 0.32.0, httplib2 performs unbounded decompression of HTTP response bodies encoded with Content-Encoding: gzip or deflate in decompressContent in httplib2/init.py, allowing a malicious or compromised HTTP server to return a small...

GO-2026-5778 Rekor has an OOM Condition due to Unbounded gzip Decompression in Alpine APK Parsing Logic in github.com/sigstore/rekor

Rekor has an OOM Condition due to Unbounded gzip Decompression in Alpine APK Parsing Logic in github.com/sigstore/rekor...

GHSA-J9CW-HWQF-85W7 Fluentd is Vulnerable to Denial of Service (DoS) via Gzip Decompression Bomb in `in_http` and `in_forward`

Fluentd's inhttp and inforward plugins support receiving gzip-compressed data. While Fluentd correctly enforces size limits on the incoming compressed payloads e.g., via bodysizelimit or chunksizelimit, it was discovered that there is no limit enforced on the size of the decompressed data. If a...