CVE-2026-67201

CVE-2026-67201 describes a SSRF bypass in V’s standard library between net.urllib and net.http up to version 0.5.2. By crafting a URL with a backslash in the authority section, net.urllib.parse() can extract a trusted host for allowlists, while net.http.get() normalizes the backslash and connects...

CVE-2026-67201 V 0.5.2 SSRF Bypass via Parser Differential in net.urllib and net.http

V through 0.5.2, fixed in commit 85859f0, contains a server-side request forgery SSRF bypass vulnerability that allows attackers to circumvent host-based allowlists by exploiting a parser differential between net.urllib and net.http. Attackers can craft a URL containing a backslash in the authori...

EUVD-2026-50446

V through 0.5.2, fixed in commit 85859f0, contains a server-side request forgery SSRF bypass vulnerability that allows attackers to circumvent host-based allowlists by exploiting a parser differential between net.urllib and net.http. Attackers can craft a URL containing a backslash in the authori...

CVE-2026-67201 V 0.5.2 SSRF Bypass via Parser Differential in net.urllib and net.http

V through 0.5.2, fixed in commit 85859f0, contains a server-side request forgery SSRF bypass vulnerability that allows attackers to circumvent host-based allowlists by exploiting a parser differential between net.urllib and net.http. Attackers can craft a URL containing a backslash in the authori...

CVE-2026-67201 V 0.5.2 SSRF Bypass via Parser Differential in net.urllib and net.http

V through 0.5.2, fixed in commit 85859f0, contains a server-side request forgery SSRF bypass vulnerability that allows attackers to circumvent host-based allowlists by exploiting a parser differential between net.urllib and net.http. Attackers can craft a URL containing a backslash in the authori...

RHSA-2026:32992 Red Hat Security Advisory: python3.12-urllib3 security update

Bulletin has no description...

RockyLinux 9 : python3.12-urllib3 (RLSA-2026:28159)

The remote RockyLinux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RLSA-2026:28159 advisory. urllib3: urllib3: Denial of Service due to excessive HTTP response decompression CVE-2026-44432 urllib3: urllib3: Information disclosure via cross-origi...

ALSA-2026:28157 Important: python3.14-urllib3 security update

Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fixes:...

Open Redirect

Overview Affected versions of this package are vulnerable to Open Redirect via the redirecturl parameter in the login process. An attacker can redirect users to arbitrary external websites by crafting a specially formatted URL that bypasses existing validation checks. Remediation Upgrade...

UBUNTU-CVE-2026-48522

PyJWT is a JSON Web Token implementation in Python. Prior to 2.13.0, PyJWKClient passes its uri argument directly to urllib.request.urlopen which uses Python stdlib's default OpenerDirector registering HTTPHandler, HTTPSHandler, FTPHandler, FileHandler, and DataHandler. There is currently no...

Astra Linux – Vulnerability in Python 3.7, Python 2.7

There is a flaw in the urllib’s AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server to which an HTTP client such as a web browser connects can trigger a Regular Expression Denial of Service ReDOS during an authentication request. This occurs when the server sends a...

Astra Linux – Vulnerability in Python-Django, Python 2.7

Packages containing “python/cpython” from versions 0 and earlier, including 3.6.13, 3.7.0 and earlier than 3.7.10, 3.8.0 and earlier than 3.8.8, 3.9.0 and earlier than 3.9.2, are vulnerable to Web Cache Poisoning via “urllib.parse.parseqsl” and “urllib.parse.parseqs”. This vulnerability occurs du...

Astra Linux – Vulnerability in Pypy

Python versions 2.7.x through 2.7.16, and 3.x through 3.7.2 are affected by improper handling of Unicode encoding with an incorrect netloc during NFKC normalization. The impact is information disclosure—credentials, cookies, etc., that are cached against a given hostname. The affected components...

CLSA-2026-1778535928 python: Fix of 2 CVEs

CVE-2021-3733: fix ReDoS in urllib2 AbstractBasicAuthHandler regex; the legacy '?:.,' prefix is replaced with the upstream-3.x form '?:^|,' and the scheme charset excludes ',' to prevent quadratic backtracking on crafted WWW-Authenticate headers - CVE-2021-23336: stop accepting ';' as a default...

360solutions-bc-mcp (=0.5.3), advanced-yaml (>=0.3.4 <=0.4.3) +295 more potentially affected by CVE-2026-44432 via urllib3 (>=2.6.0 <=2.6.3)

urllib3 PYPI version =2.6.0, =0.3.4, =0.1.0, =0.5.0, =0.24.2, =0.5.0, =1.0.5, =26.1.0, =26.5.0b1, =0.45.0, =0.2.6, =0.5.1, =1.6.6.8 and more Source cves: CVE-2026-44432 Source advisory: OSV:GHSA-MF9V-MFXR-J63J...

ROS-20260505-73-0048

A vulnerability in the urllib.request.DataHandler component of the Python programming language interpreter is related to the failure to take measures to neutralize CRLF sequences. Exploitation of the vulnerability may allow a remote attacker to affect the integrity of protected information...

python: Fix of CVE-2019-9948

CVE-2019-9948: fix urllib localfile:// URL scheme bypass that allowed file reads when localfile handler was defined...

cpython: Header injection via newlines in data URL mediatype in Python

Missing newline filtering has been discovered in Python. User-controlled data URLs parsed by urllib.request.DataHandler allow injecting headers through newlines in the data URL mediatype...

cpython: Header injection via newlines in data URL mediatype in Python

Missing newline filtering has been discovered in Python. User-controlled data URLs parsed by urllib.request.DataHandler allow injecting headers through newlines in the data URL mediatype...

SUSE-SU-2026:20665-1 Security update for python311

This update for python311 fixes the following issues: - CVE-2025-11468: preserving parens when folding comments in email headers. bsc1257029 - CVE-2026-0672: rejects control characters in http cookies. bsc1257031 - CVE-2026-0865: rejecting control characters in wsgiref.headers.Headers, which coul...