Imperva_gzip_WAF_Bypass

Imperva 웹 애플리케이션 방화벽WAF POST 요청 우회 Imperva Cloud WAF에는 공격자가 log4j 악용, SQL 인젝션, 명령 실행, 디렉터리 탐색, XXE 등과 같은 악성 HTTP POST 페이로드를 전송할 때 WAF 규칙을 우회할 수 있게 하는 우회 취약점이 있었습니다. 해결 방법 Imperva 팀은 이 문제가 보고된 순간부터 매우 진지하게 받아들였으며, 단 며칠 만에 전역 수정을 완료했습니다. 정말 대단합니다. Cloud WAF의 모든 고객은 2021년 12월 22일 기준으로 자동 패치되었습니다...

Zapros has an Unbounded Content-Encoding decompression chain that allows denial of service

ImpactWho is impacted: - Any application using Zapros to make HTTP requests to untrusted servers - Applications that follow redirects to attacker-controlled hostsAttack vector: - A malicious HTTP server returns a response with many chained content encodings. When the client attempts to decode, it...

EUVD-2026-71634

undici vulnerable to Denial of Service via unbounded decompression of compressed responses...

undici vulnerable to Denial of Service via unbounded decompression of compressed responses

Impact The interceptors.decompress interceptor decompresses HTTP response bodies according to the untrusted Content-Encoding header. The number of decompression layers is capped at 5, but the total decompressed output size is not bounded and there is no option to limit it. A malicious or faulty...

CVE-2026-28318-check

SolarWinds Serv-U Unauthenticated DoS: Safe Detection Script A safe, non-destructive detector for CVE-2026-28318 , an unauthenticated denial-of-service in SolarWinds Serv-U= 15.5.4.108. A single POST that carries Content-Encoding: deflate and a body feeds that body to an in-memory deflate...

Imperva_gzip_bypass

Imperva Web Application Firewall WAF POST Request Bypass Imperva Cloud WAF was vulnerable to a bypass that allows attackers to evade WAF rules when sending malicious HTTP POST payloads, such as log4j exploits, SQL injection, command execution, directory traversal, XXE, etc. Remediation The Imperv...

servu-cve-2026-28318-poc

CVE-2026-28318 — SolarWinds Serv-U "Content-Encoding: deflate" crash sans authentification Analyse de la cause racine + preuve de concept DoS. L'avis public classe cela comme un déni de service / consommation de ressources non contrôlée sans authentification. L'analyse binaire montre que le défau...

openSUSE 16: httpcomponents-client / httpcomponents-client-cache / etc (openSUSE-SU-2026:21894-1)

The remote openSUSE 16 host has packages installed that are affected by a vulnerability as referenced in the openSUSE- SU-2026:21894-1 advisory. This update for httpcomponents-client fixes the following issue: - CVE-2026-64607: improper release of underlying connection back to connection manager...

Security Bulletin: HttpClient based on the classic i/o model fails to correctly release the underlying connection

Summary HttpClient based on the classic i/o model fails to correctly release the underlying connection back to the connection manager if it encounters an invalid or unsupported Content-Encoding header value in the response message. Please note this defect does not affect HttpClient based on the...

org.apache.httpcomponents.client5/httpclient5: Apache HttpComponents Client: Denial of Service due to connection leak

A flaw was found in Apache HttpComponents Client, specifically in its classic input/output I/O model. When processing a response message with an invalid or unsupported Content-Encoding header, the client fails to properly release the underlying network connection. This connection leak can lead to...

GHSA-5VJJ-2R48-Q622 Zapros has an Unbounded Content-Encoding decompression chain that allows denial of service

Impact Who is impacted: - Any application using Zapros to make HTTP requests to untrusted servers - Applications that follow redirects to attacker-controlled hosts Attack vector: - A malicious HTTP server returns a response with many chained content encodings. When the client attempts to decode, ...

Allocation of Resources Without Limits or Throttling

Overview zapros is a Modern and extensible HTTP client for Python. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via getcontentdecoder in src/zapros/models.py, where an attacker can send an HTTP response with an unbounded number of...

Zapros has an Unbounded Content-Encoding decompression chain that allows denial of service

Impact Who is impacted: - Any application using Zapros to make HTTP requests to untrusted servers - Applications that follow redirects to attacker-controlled hosts Attack vector: - A malicious HTTP server returns a response with many chained content encodings. When the client attempts to decode, ...

EUVD-2026-84182

Zapros has an Unbounded Content-Encoding decompression chain that allows denial of service...

BIT-NIFI-2026-70469 Apache NiFi: Improper Handling of Case Sensitivity for Content-Encoding in HTTP Requests

Apache NiFi 2.11.0 disabled support for gzip-encoded HTTP requests for the application REST API and rejected requests that included the standard Content-Encoding header indicating gzip encoding. The framework enforcement filter did not check multiple instances of the Content-Encoding header and d...

CVE-2026-61541

Zapros, a Python HTTP client, prior to version 0.14.0 is vulnerable to denial of service when an application requests content from an untrusted server, or follows a redirect to one, because a malicious response containing an excessive number of chained Content-Encoding values causes Zapros to...

CVE-2026-61541

Zapros , a Python HTTP client, is vulnerable to denial of service in versions prior to 0.14.0 . The root cause is an unbounded chained Content-Encoding decompression chain : when an application requests content from an untrusted server (or follows a redirect to one), a malicious response containi...

CVE-2026-61541 Zapros has an Unbounded Content-Encoding decompression chain that allows denial of service

Zapros, a Python HTTP client, prior to version 0.14.0 is vulnerable to denial of service when an application requests content from an untrusted server, or follows a redirect to one, because a malicious response containing an excessive number of chained Content-Encoding values causes Zapros to...

CVE-2026-61541 Zapros has an Unbounded Content-Encoding decompression chain that allows denial of service

Zapros, a Python HTTP client, prior to version 0.14.0 is vulnerable to denial of service when an application requests content from an untrusted server, or follows a redirect to one, because a malicious response containing an excessive number of chained Content-Encoding values causes Zapros to...

CVE-2026-61541 Zapros has an Unbounded Content-Encoding decompression chain that allows denial of service

Zapros, a Python HTTP client, prior to version 0.14.0 is vulnerable to denial of service when an application requests content from an untrusted server, or follows a redirect to one, because a malicious response containing an excessive number of chained Content-Encoding values causes Zapros to...