EUVD-2026-72107

h3 versions before 1.15.9 contain a path traversal vulnerability in the serveStatic utility. A double-decoding flaw allows a request path containing double-encoded dot sequences e.g. %252e%252e to be decoded to %2e%2e, which survives resolveDotSegments because that function only checks for litera...

CVE-2026-86251 h3 before 1.15.9 Path Traversal via Double Decoding

h3 versions before 1.15.9 contain a path traversal vulnerability in the serveStatic utility. A double-decoding flaw allows a request path containing double-encoded dot sequences e.g. %252e%252e to be decoded to %2e%2e, which survives resolveDotSegments because that function only checks for litera...

CVE-2026-86251 h3 before 1.15.9 Path Traversal via Double Decoding

h3 versions before 1.15.9 contain a path traversal vulnerability in the serveStatic utility. A double-decoding flaw allows a request path containing double-encoded dot sequences e.g. %252e%252e to be decoded to %2e%2e, which survives resolveDotSegments because that function only checks for litera...

CVE-2026-86251

Versions of h3 before 1.15.9 contain a path traversal vulnerability in the serveStatic utility. The root cause is a double-decoding flaw : a request path containing double-encoded dot sequences (e.g. %252e%252e) decodes to %2e%2e, which survives the resolveDotSegments() function because it only c...

AgentDrift: A Step-Labeled Benchmark of Injection-Hijacked LLM Agent Trajectories

LLM agents complete tasks by issuing sequences of tool calls, and every observation they read is a channel through which an indirect prompt injection can enter. A successful injection has a characteristic shape when the trajectory is read in order: a benign prefix gives way to actions that serve...

CVE-2026-86251: Improper Limitation of a Pathname to a Restricted Directory

h3 versions before 1.15.9 contain a path traversal vulnerability in the serveStatic utility. A double-decoding flaw allows a request path containing double-encoded dot sequences e.g. %252e%252e to be decoded to %2e%2e, which survives resolveDotSegments because that function only checks for litera...

PT-2026-86520

h3 versions before 1.15.9 contain a path traversal vulnerability in the serveStatic utility. A double-decoding flaw allows a request path containing double-encoded dot sequences e.g. %252e%252e to be decoded to %2e%2e, which survives resolveDotSegments because that function only checks for litera...

CVE-2026-19862: Improper Neutralization of CRLF Sequences

The JetFormBuilder WordPress plugin before 3.6.5.2 does not validate or strip line breaks from address values it sources from submitted form fields before adding them to the headers of the e-mails it sends, allowing unauthenticated users to inject arbitrary e-mail headers, add hidden recipients a...

CVE-2026-86253: Improper Limitation of a Pathname to a Restricted Directory

h3 npm package versions = 2.0.1-rc.14 contain a path traversal vulnerability in serveStatic. On Node.js deployments, event.url.pathname is not normalized, so percent-encoded dot segments %2e%2e are passed to decodeURI and decoded to ../ sequences without sanitization. An unauthenticated remote...

PT-2026-86522

h3 npm package versions = 2.0.1-rc.14 contain a path traversal vulnerability in serveStatic. On Node.js deployments, event.url.pathname is not normalized, so percent-encoded dot segments %2e%2e are passed to decodeURI and decoded to ../ sequences without sanitization. An unauthenticated remote...

OESA-2026-3700 python-GitPython security update

GitPython is a python library used to interact with git repositories, high-level like git-porcelain, or low-level like git-plumbing. Security Fixes: GitPython before 3.1.57 contains an incomplete denylist in the unsafegitarchiveoptions guard that omits --add-file and --add-virtual-file options...

OESA-2026-3699 python-GitPython security update

GitPython is a python library used to interact with git repositories, high-level like git-porcelain, or low-level like git-plumbing. Security Fixes: GitPython before 3.1.57 contains an incomplete denylist in the unsafegitarchiveoptions guard that omits --add-file and --add-virtual-file options...

OESA-2026-3668 ruby security update

Ruby is a fast and easy interpreted scripting language for object-oriented programming. It has many functions for processing text Files and perform system management tasks such as Perl. Security Fixes: Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. Prior ...

OESA-2026-3665 ruby security update

Ruby is a fast and easy interpreted scripting language for object-oriented programming. It has many functions for processing text Files and perform system management tasks such as Perl. Security Fixes: Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. Prior ...

OESA-2026-3608 python-ujson security update

UltraJSON Security Fixes: UltraJSON aka ujson through 5.1.0 has a stack-based buffer overflow in BufferAppendIndentUnchecked called from encode. Exploitation can, for example, use a large amount of indentation.CVE-2021-45958 UltraJSON is a fast JSON encoder and decoder written in pure C with...

OESA-2026-3607 python-ujson security update

UltraJSON Security Fixes: UltraJSON aka ujson through 5.1.0 has a stack-based buffer overflow in BufferAppendIndentUnchecked called from encode. Exploitation can, for example, use a large amount of indentation.CVE-2021-45958 UltraJSON is a fast JSON encoder and decoder written in pure C with...

OESA-2026-3606 python-ujson security update

UltraJSON Security Fixes: UltraJSON aka ujson through 5.1.0 has a stack-based buffer overflow in BufferAppendIndentUnchecked called from encode. Exploitation can, for example, use a large amount of indentation.CVE-2021-45958 UltraJSON is a fast JSON encoder and decoder written in pure C with...

PYSEC-2026-4010 Arbitrary file read via workspace confinement bypass in local-operator /v1/chat/agents/{id}/edit

The /v1/chat/agents/agentid/edit endpoint in local-operator versions before 0.47.5 resolves the caller-supplied filepath with expanduser.resolve and reads it without checking that it lies inside the agent's workspace. An unauthenticated client with network access to the API can supply an absolute...

Arbitrary file read via workspace confinement bypass in local-operator /v1/chat/agents/{id}/edit

The /v1/chat/agents/agentid/edit endpoint in local-operator versions before 0.47.5 resolves the caller-supplied filepath with expanduser.resolve and reads it without checking that it lies inside the agent's workspace. An unauthenticated client with network access to the API can supply an absolute...

Path traversal and arbitrary directory deletion/overwrite via agent profile import in local-operator

The /v1/agents/import endpoint and AgentRegistry.importagent in local-operator versions before 0.47.5 trust the id field inside agent.yml of an uploaded agent profile archive when constructing the destination directory. A crafted id containing directory traversal sequences makes shutil.rmtree and...