PYSEC-2026-1097 AIOHTTP vulnerable to brute-force leak of internal static file path components

Summary Path normalization for static files prevents path traversal, but opens up the ability for an attacker to ascertain the existence of absolute path components. Impact If an application uses web.static not recommended for production deployments, it may be possible for an attacker to ascertai...

PYSEC-2026-1605 Marshmallow has DoS in Schema.load(many)

Impact Schema.loaddata, many=True is vulnerable to denial of service attacks. A moderately sized request can consume a disproportionate amount of CPU time. Patches 4.1.2, 3.26.2 Workarounds py Fail fast def loadmanyschema, data, kwargs: if not isinstancedata, list: raise ValidationError'Invalid...

urllib3 allows an unbounded number of links in the decompression chain

Impacturllib3 supports chained HTTP encoding algorithms for response content according to RFC 9110 e.g., Content-Encoding: gzip, zstd.However, the number of links in the decompression chain was unbounded allowing a malicious server to insert a virtually unlimited number of compression steps leadi...

PYSEC-2026-1994 urllib3 streaming API improperly handles highly compressed data

Impact urllib3's streaming API is designed for the efficient handling of large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. When streaming a compressed response, urllib3 can perform decoding or decompression based on the HTTP...

PYSEC-2026-1998 urllib3 allows an unbounded number of links in the decompression chain

Impact urllib3 supports chained HTTP encoding algorithms for response content according to RFC 9110 e.g., Content-Encoding: gzip, zstd. However, the number of links in the decompression chain was unbounded allowing a malicious server to insert a virtually unlimited number of compression steps...

PYSEC-2026-1761 Insecure Deserialization (pickle) in pdfminer.six CMap Loader — Local Privesc

🚀 Overview This report demonstrates a real-world privilege escalation vulnerability in pdfminer.six due to unsafe usage of Python's pickle module for CMap file loading. It shows how a low-privileged user can gain root access or escalate to any service account by exploiting insecure deserializatio...

PYSEC-2026-1682 MS SWIFT WEB-UI RCE Vulnerability

I. Detailed Description: This includes scenarios, screenshots, vulnerability reproduction methods. For account-related vulnerabilities, please provide test accounts. If the reproduction process is complex, you may record a video, upload it to Taopan, and attach the link. 1. Install ms-swift pip...

PYSEC-2026-1359 fastapi-guard is vulnerable to ReDoS through inefficient regex

Summary fastapi-guard detects penetration attempts by using regex patterns to scan incoming requests. However, some of the regex patterns used in detection are extremely inefficient and can cause polynomial complexity backtracks when handling specially crafted inputs. It is not as severe as...

Malicious code in paysafe-sdk (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 12ef2b75345902c9fe851d85e09c4b6680a3685669ab4dcd8b827ebaebb46626 Package metadata claims to be the 'Official Paysafe SDK for Python' by 'Paysafe Developer Team', but the shipped module is a stealer disguised as a...

Malicious code in paysafe-payments (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 7e2b7f287703755dab866acf1047a148e321d06a84353238936eaba58b6e7fda Package impersonates the Paysafe payments SDK metadata claims 'Paysafe Developer Team', 'Paysafe Payments processing library' but its advertised...

Malicious code in paysafe-kyc (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 8c619e500f8070a5525694f42547c0b73e8189965f8816f1a124190f50bed6f5 The paysafe-kyc package impersonates a legitimate Paysafe KYC/payments SDK author string 'Paysafe Developer Team', base URL https://api.paysafe.com,...

PYSEC-2026-1944 Litestar allows unbounded resource consumption (DoS vulnerability)

Summary Litestar offers multiple methods to return a parsed representation of the request body, as well as extractors that rely on those parsers to map request content to structured data types. Multiple of those parsers do not have size limits when reading the request body into memory, which allo...

PYSEC-2026-1240 changedetection.io Path Traversal

Summary When a WebDriver is used to fetch files source:file:///etc/passwd can be used to retrieve local system files, where the more traditional file:///etc/passwd gets blocked Details The root cause is the payload source:file:///etc/passwdpasses the regex here and also passes the check here wher...

Server-side Request Forgery (SSRF)

Overview Affected versions of this package are vulnerable to Server-side Request Forgery SSRF in the notification URL validation process. An attacker can access internal network resources and potentially expose sensitive internal data by configuring notification URLs to point to hostnames that...

MAL-2026-8075 Malicious code in m8403v3qkt (RubyGems)

--- -= Per source details. Do not edit below this line.=-...

PYSEC-2026-1474 Jinja vulnerable to HTML attribute injection when passing user input as keys to xmlattr filter

The xmlattr filter in affected versions of Jinja accepts keys containing non-attribute characters. XML/HTML attributes cannot contain spaces, /, , or =, as each would then be interpreted as starting a separate attribute. If an application accepts keys as opposed to only values as user input, and...

PYSEC-2026-1127 ansys-geometry-core OS Command Injection vulnerability

subprocess call with shell=True identified, security issue. Code On file src/ansys/geometry/core/connection/productinstance.py: 403 def startprogramargs: Liststr, localenv: Dictstr, str - subprocess.Popen: 404 """ 405 Start the program where the path is the first item of the args array argument...

PYSEC-2026-1908 Scrapy authorization header leakage on cross-domain redirect

Impact When you send a request with the Authorization header to one domain, and the response asks to redirect to a different domain, Scrapy’s built-in redirect middleware creates a follow-up redirect request that keeps the original Authorization header, leaking its content to that second domain...

PYSEC-2026-1834 Possible Infinite Loop when PdfWriter(clone_from) is used with a PDF

Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This infinite loop blocks the current process and can utilize a single core of the CPU by 100%. It does not affect memory usage. That is, for example, the case when the pypdf-user manipulates an incomi...

Excessive Iteration in gRPC

gRPC contains a vulnerability that allows hpack table accounting errors could lead to unwanted disconnects between clients and servers in exceptional cases/Three vectors were found that allow the following DOS attacks:- Unbounded memory buffering in the HPACK parser- Unbounded CPU consumption in...