curl: Bypassing Strict SSH Server Verification via Connection Pool Reuse in libcurl

Summary There is a logic flaw in how libcurl manages its connection pool for SSH protocols SFTP/SCP. When evaluating an existing connection for reuse, sshconfigmatches in lib/url.c fails to compare server identity verification policies. By ignoring CURLOPTSSHKNOWNHOSTS, CURLOPTSSHHOSTPUBLICKEYMD5...

curl: Use-After-Free race condition in url_move_hostname() via shared connection pool

Summary: In lib/url.c, urlconnreuseadjust calls urlmovehostname which frees conn-host.rawalloc and conn-host.encalloc via Curlsafefree and Curlfreeidnconvertedhostname after Curlcpoolfind has already released the connection pool lock. A second thread doing a concurrent pool lookup still holds tha...

AWS VDP: OS Command Injection in `aws-cdk-lib` NodejsFunction via Unsanitized `OsCommand` Helper (Supply Chain RCE)

A vulnerability was discovered in the "aws-cdk-lib" NodejsFunction that allowed for OS command injection through the unsanitized "OsCommand" helper. The vulnerability was caused by the lack of proper escaping of user-controlled data when constructing shell commands during Docker-based bundling...

curl: HackerOne Vulnerability Report: libcurl SSL/TLS Identity Leakage via Insecure Connection Reuse

Summary libcurl contains a critical logic flaw in its connection reuse mechanism where transfers using the CURLOPTSSLCTXFUNCTION SSL context callback to establish a specific identity e.g., via client certificates can have their connections incorrectly reused by subsequent, unauthenticated transfe...

curl: HTTP/2 PUSH_PROMISE header loss on OOM bypasses scheme validation (regression of 2e8c922a89)

Summary: In lib/http2.c:1490, when curlmaprintf fails due to memory pressure, the push promise header is silently dropped but the callback returns success. If the lost header is the :scheme pseudo-header, the security check at line 733 that blocks HTTPS pushes over insecure connections is skipped...

arkadiyt-projects: Path Traversal in writeFile via Unsafe Prefix Containment Check Allows Out-of-Directory Writes

A path traversal vulnerability was discovered in the protodump tool. The vulnerability allowed an attacker to influence the output filename construction and bypass the containment check, enabling writes outside the intended output directory. The vulnerability was caused by the use of...

arkadiyt-projects: SSRF Filter Bypass via Unblocked NAT64 Local-Use IPv6 Prefix (64:ff9b:1::/48)

A vulnerability was discovered in the ssrffilter library version 1.3.0. The library failed to block the NAT64 local-use IPv6 prefix 64:ff9b:1::/48, allowing such addresses to be treated as public. This enabled SSRF requests through /fetch to targets encoded under that prefix when routable in the...

XSS via unsanitized `text/vnd.mermaid` output in nbconvert HTML export

This report is not public...

curl: CRLF Injection in HAProxy PROXY Protocol via CURLOPT_HAPROXY_CLIENT_IP allows IP spoofing and protocol injection

Summary: CURLOPTHAPROXYCLIENTIP introduced in curl 8.2.0 accepts arbitrary strings without any validation or sanitization before injecting them into the HAProxy PROXY protocol v1 header. An attacker who can influence the value passed to this option e.g., through a web application that proxies...

AWS VDP: Sandbox User Can Inject Rogue CA Certificate into OS Trust Store via Sudo-Allowed deploy-certificates.sh

A vulnerability was found in the Bedrock AgentCore Code Interpreter sandbox. The sandbox granted a user passwordless sudo access to a script that deployed certificates to the OS trust store. An attacker could have generated a rogue CA certificate, placed it in a writable directory, and then used...

AWS VDP: Bedrock AgentCore Starter Toolkit Creates Gateway IAM Roles Without Confused Deputy Protections

The Bedrock AgentCore Starter Toolkit was found to create IAM roles for the AgentCore Gateway with trust policies that lacked certain condition keys. This enabled a cross-account confused deputy attack where any AgentCore workload in any AWS account could assume the victim's Gateway role. The rol...

curl: Unbounded GZIP Decompression Leading to Event-Loop Starvation

When libcurl is configured to decompress HTTP responses via CURLOPTACCEPTENCODING or the --compressed CLI flag, it lacks decompression bounds checking or a mechanism to yield execution during massive expansion tasks. If an attacker provides a highly compressed payload zip bomb, libcurl's underlyi...

Arbitrary code execution via malicious logging configuration (dictConfig factory injection)

Kedro v1.2.0 passes user-controlled YAML config to logging.config.dictConfig without validation. The factory key enables arbitrary callable instantiation, achieving RCE at startup. kedro/framework/project/init.py, ProjectLogging: loggingconfig = Pathpath.readtextencoding="utf-8"...

AWS VDP: Kiro IDE Stores Auth Tokens with World-Readable Permissions (0644)

The Kiro IDE version 0.11.107 wrote authentication tokens access token and refresh token to a file with world-readable permissions 0644. The file contained sensitive information, including the access token, refresh token, and profile ARN. This exposed the credentials to potential unauthorized...

curl: HTTP/2 server push accepts a non-authoritative :scheme=https over cleartext h2c, enabling HTTPS cache-key poisoning

Summary: I found that libcurl 8.19.0 accepts an HTTP/2 pushed stream on a cleartext h2c connection even when the server sends :scheme=https in PUSHPROMISE. In lib/http2.c, settransferurl builds the pushed handle URL from the server-supplied :scheme, :authority, and :path, but PUSHPROMISE validati...

Shopify: admin.shopify.com: Shopify Flow continues sending internal emails to a configured recipient after the staff author is removed

Summary: A staff user removed from a Shopify store continues to receive customer Personally Identifiable Information PII via a previously created automation workflow. The workflow, configured using Shopify Flow, continues executing after the user's access has been revoked and sends sensitive...

curl: Security Vulnerability Report: Protocol Injection via Programmatic Options

Summary Multiple text-based protocol handlers in libcurl including FTP, SMTP, POP3, and IMAP are vulnerable to protocol command injection. This occurs when an application sets credentials or other protocol-specific options programmatically e.g., via CURLOPTUSERNAME, CURLOPTPASSWORD, or...

Node.js: Permission Model bypass via FileHandle.utimes() in the promises API

Vulnerability description not provided...

PortSwigger Web Security: Out of scope: Improper Input Validation Order on /api-internal/login via password field leads to unnecessary resource consumption

A security issue was discovered in the /api-internal/login authentication endpoint of the internal login interface of Burp Suite DAST Enterprise. The issue was caused by improper input validation order, where the application processed user-supplied input before enforcing field-level validation...

Path Traversal in DiskIOStore via Unsanitized Layer Names in Keras 3

Description A logic flaw in the Keras 3 v3.0.0+ model saving and loading library handles internal asset paths insecurely. Specifically, the DiskIOStore.make method in keras/src/saving/savinglib.py uses user-provided layer names to construct directory paths without sanitizing for parent directory...