PSF-2026-27

bz2.BZ2Decompressor objects could be reused after a decompression error. If an application caught the resulting OSError and retried with the same decompressor, crafted input could cause the decompressor to resume from an invalid internal state and perform out-of-bounds writes to a stack buffer...

CVE-2026-49755

Improper Handling of Highly Compressed Data Data Amplification vulnerability in wojtekmach Req allows attacker-controlled HTTP servers to exhaust memory in a Req client via decompression-bomb response bodies. Req's default response pipeline includes Req.Steps.decodebody/1 and...

CVE-2026-49755 Decompression bomb DoS in Req via auto-decoded archive and compressed response bodies

Improper Handling of Highly Compressed Data Data Amplification vulnerability in wojtekmach Req allows attacker-controlled HTTP servers to exhaust memory in a Req client via decompression-bomb response bodies. Req's default response pipeline includes Req.Steps.decodebody/1 and...

CVE-2026-49755 Decompression bomb DoS in Req via auto-decoded archive and compressed response bodies

Improper Handling of Highly Compressed Data Data Amplification vulnerability in wojtekmach Req allows attacker-controlled HTTP servers to exhaust memory in a Req client via decompression-bomb response bodies. Req's default response pipeline includes Req.Steps.decodebody/1 and...

CVE-2026-49755

Improper Handling of Highly Compressed Data Data Amplification vulnerability in wojtekmach Req allows attacker-controlled HTTP servers to exhaust memory in a Req client via decompression-bomb response bodies. Req's default response pipeline includes Req.Steps.decodebody/1 and...

EEF-CVE-2026-49755 Decompression bomb DoS in Req via auto-decoded archive and compressed response bodies

Summary Improper Handling of Highly Compressed Data Data Amplification vulnerability in wojtekmach Req allows attacker-controlled HTTP servers to exhaust memory in a Req client via decompression-bomb response bodies. Req's default response pipeline includes Req.Steps.decode\body/1 and...

CVE-2026-49755

Technical details beyond what’s in the Initial Description are not provided in the connected documents. Monitor for updates for specifics on affected versions, root cause, and remediation.

CVE-2026-49755 Decompression bomb DoS in Req via auto-decoded archive and compressed response bodies

Improper Handling of Highly Compressed Data Data Amplification vulnerability in wojtekmach Req allows attacker-controlled HTTP servers to exhaust memory in a Req client via decompression-bomb response bodies. Req's default response pipeline includes Req.Steps.decodebody/1 and...

urllib3: urllib3: Denial of Service due to excessive HTTP response decompression

A flaw was found in urllib3, an HTTP client library for Python. This vulnerability allows a remote attacker to cause excessive resource consumption, such as high CPU usage and massive memory allocation, on the client side. This occurs when urllib3 attempts to decompress an entire HTTP response,...

PT-2026-47453

Name of the Vulnerable Software and Affected Versions Python affected versions not specified Description bz2.BZ2Decompressor objects can be reused following a decompression error. If an application catches the resulting OSError and attempts to retry using the same decompressor, specially crafted...

PT-2026-47332

Name of the Vulnerable Software and Affected Versions wojtekmach Req versions 0.1.0 through 0.6.0 Description Improper handling of highly compressed data allows attacker-controlled HTTP servers to exhaust memory in a client via decompression-bomb response bodies. The default response pipeline...

CVE-2026-49755: Improper Handling of Highly Compressed Data (Data Amplification)

Improper Handling of Highly Compressed Data Data Amplification vulnerability in wojtekmach Req allows attacker-controlled HTTP servers to exhaust memory in a Req client via decompression-bomb response bodies. Req's default response pipeline includes Req.Steps.decodebody/1 and...

CPython 安全漏洞

CPython is a Python interpreter implemented in C language by the Python Foundation. CPython has a security vulnerability that stems from the possibility of objects being reused after decompression errors. If an application catches an OSError and retries with the same decompressor, specially craft...

req 安全漏洞

“req” is a simple Go HTTP client developed by a Roc individual using Black Magic. Versions of “req” from 0.1.0 to 0.6.1 contained security vulnerabilities. These vulnerabilities stemmed from improper handling of highly compressed data, which could allow an attacker-controlled HTTP server to exhau...

glitchtip-gzip-decompression-poc

GlitchTip gzip decompression PoC This PoC demonstrates that c...

urllib3: urllib3: Denial of Service due to excessive HTTP response decompression

A flaw was found in urllib3, an HTTP client library for Python. This vulnerability allows a remote attacker to cause excessive resource consumption, such as high CPU usage and massive memory allocation, on the client side. This occurs when urllib3 attempts to decompress an entire HTTP response,...

urllib3: urllib3: Denial of Service due to excessive HTTP response decompression

A flaw was found in urllib3, an HTTP client library for Python. This vulnerability allows a remote attacker to cause excessive resource consumption, such as high CPU usage and massive memory allocation, on the client side. This occurs when urllib3 attempts to decompress an entire HTTP response,...

urllib3: urllib3: Denial of Service due to excessive HTTP response decompression

A flaw was found in urllib3, an HTTP client library for Python. This vulnerability allows a remote attacker to cause excessive resource consumption, such as high CPU usage and massive memory allocation, on the client side. This occurs when urllib3 attempts to decompress an entire HTTP response,...

urllib3: urllib3: Denial of Service due to excessive HTTP response decompression

A flaw was found in urllib3, an HTTP client library for Python. This vulnerability allows a remote attacker to cause excessive resource consumption, such as high CPU usage and massive memory allocation, on the client side. This occurs when urllib3 attempts to decompress an entire HTTP response,...

urllib3: urllib3: Denial of Service due to excessive HTTP response decompression

A flaw was found in urllib3, an HTTP client library for Python. This vulnerability allows a remote attacker to cause excessive resource consumption, such as high CPU usage and massive memory allocation, on the client side. This occurs when urllib3 attempts to decompress an entire HTTP response,...