GHSA-J5G9-F88F-GFJ3 httplib2: Decompression Bomb Denial of Service via Unbounded gzip/deflate Response Handling

Summary The httplib2 HTTP client library performs unbounded decompression of HTTP response bodies encoded with Content-Encoding: gzip or deflate. A malicious or compromised HTTP server can return a small compressed payload approximately 150 KB that expands to an arbitrarily large size in memory 1...

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-2026-59939 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...

PYSEC-2026-1202 Authlib : JWE zip=DEF decompression bomb enables DoS

Summary Authlib’s JWE zip=DEF path performs unbounded DEFLATE decompression. A very small ciphertext can expand into tens or hundreds of megabytes on decrypt, allowing an attacker who can supply decryptable tokens to exhaust memory and CPU and cause denial of service. Details - Affected component...

Keycloak: Denial of Service due to excessive SAMLRequest decompression

A flaw was found in Keycloak. An unauthenticated remote attacker can trigger an application level Denial of Service DoS by sending a highly compressed SAMLRequest through the SAML Redirect Binding. The server fails to enforce size limits during DEFLATE decompression, leading to an OutOfMemoryErro...

undici 安全漏洞

Undici is an open-source HTTP/1.1 client developed by Node.js. Undici has a security vulnerability that stems from unlimited memory consumption during the decompression of permessage-deflate. This vulnerability could allow malicious WebSocket servers to send small compressed frames, causing the...

Improper Handling of Highly Compressed Data (Data Amplification)

Overview org.keycloak:keycloak-services is an open source identity and access management solution for modern applications and services. Affected versions of this package are vulnerable to Improper Handling of Highly Compressed Data Data Amplification via the SAMLRequest DEFLATE decompression. An...

PT-2026-31471

Name of the Vulnerable Software and Affected Versions Unfurl versions prior to 2026.04 Description Unfurl contains a flaw in the parse compressed.py component due to unbounded zlib decompression. Remote attackers can leverage this to cause a denial of service. Specifically, attackers can send...

Denial Of Service (DoS)

authlib is vulnerable to Denial Of Service. The vulnerability is due to unbounded DEFLATE decompression in the JWE zip=DEF processing path, where a very small ciphertext can expand into extremely large plaintext during token decryption, and attackers can exploit this by supplying decryptable toke...

CVE-2025-62706

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.5, Authlib’s JWE zip=DEF path performs unbounded DEFLATE decompression. A very small ciphertext can expand into tens or hundreds of megabytes on decrypt, allowing an attacker who can supply decryptable...

DEBIAN-CVE-2025-62706

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.5, Authlib’s JWE zip=DEF path performs unbounded DEFLATE decompression. A very small ciphertext can expand into tens or hundreds of megabytes on decrypt, allowing an attacker who can supply decryptable...

CVE-2025-62706

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.5, Authlib’s JWE zip=DEF path performs unbounded DEFLATE decompression. A very small ciphertext can expand into tens or hundreds of megabytes on decrypt, allowing an attacker who can supply decryptable...

Authlib 安全漏洞

Authlib is the ultimate Python library for building OAuth and OpenID Connect servers open-sourced by Authlib. A security vulnerability exists in Authlib versions prior to 1.6.5, which stems from the JWE zip=DEF path executing an unrestricted DEFLATE decompression, which could lead to memory and C...

Authlib : JWE zip=DEF decompression bomb enables DoS

Summary Authlib’s JWE zip=DEF path performs unbounded DEFLATE decompression. A very small ciphertext can expand into tens or hundreds of megabytes on decrypt, allowing an attacker who can supply decryptable tokens to exhaust memory and CPU and cause denial of service. Details - Affected component...

Redlib allows a Denial of Service via DEFLATE Decompression Bomb in restore_preferences Form

A vulnerability has been identified in Redlib where an attacker can cause a denial-of-service DOS condition by submitting a specially crafted base2048-encoded DEFLATE decompression bomb to the restorepreferences form. This leads to excessive memory consumption and potential system instability,...

GHSA-G8VQ-V3MG-7MRG Redlib allows a Denial of Service via DEFLATE Decompression Bomb in restore_preferences Form

A vulnerability has been identified in Redlib where an attacker can cause a denial-of-service DOS condition by submitting a specially crafted base2048-encoded DEFLATE decompression bomb to the restorepreferences form. This leads to excessive memory consumption and potential system instability,...

CVE-2025-30160 Redlib allows a Denial of Service via DEFLATE Decompression Bomb in restore_preferences Form

Redlib is an alternative private front-end to Reddit. A vulnerability has been identified in Redlib where an attacker can cause a denial-of-service DOS condition by submitting a specially crafted base2048-encoded DEFLATE decompression bomb to the restorepreferences form. This leads to excessive...

Redlib 代码问题漏洞

Redlib is a private front-end for Reddit open-sourced by Redlib. A code issue vulnerability exists in Redlib versions prior to 0.36.0 that stems from an attacker being able to cause a denial of service by submitting a specially crafted base2048-encoded DEFLATE decompression bomb that consumes a...

CVE-2023-28119 crewjam/saml vulnerable to Denial Of Service Via Deflate Decompression Bomb

The crewjam/saml go library contains a partial implementation of the SAML standard in golang. Prior to version 0.4.13, the package's use of flate.NewReader does not limit the size of the input. The user can pass more than 1 MB of data in the HTTP request to the processing functions, which will be...

GO-2023-1602 Denial of service via deflate decompression bomb in github.com/russellhaering/gosaml2

A bug in SAML authentication library can result in Denial of Service attacks. Attackers can craft a "deflate"-compressed request which will consume significantly more memory during processing than the size of the original request. This may eventually lead to memory exhaustion and the process bein...