CVE-2026-41144 F´ (F Prime) has Integer Overflow in FileUplink

F´ F Prime is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to version 4.2.0, the bounds check byteOffset + dataSize fileSize uses U32 addition that wraps around on overflow. An attacker-crafted DataPacket with...

CVE-2026-41144 F´ (F Prime) has Integer Overflow in FileUplink

F´ F Prime is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to version 4.2.0, the bounds check byteOffset + dataSize fileSize uses U32 addition that wraps around on overflow. An attacker-crafted DataPacket with...

CVE-2026-41144

F´ F Prime is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to version 4.2.0, the bounds check byteOffset + dataSize fileSize uses U32 addition that wraps around on overflow. An attacker-crafted DataPacket with...

CVE-2026-40909

WWBN AVideo is an open source video platform. In versions 29.0 and prior, the locale save endpoint locale/save.php constructs a file path by directly concatenating $POST'flag' into the path at line 30 without any sanitization. The $POST'code' parameter is then written verbatim to that path via...

CVE-2026-40909 WWBN AVideo has a Path Traversal in Locale Save Endpoint that Enables Arbitrary PHP File Write to Any Web-Accessible Directory (RCE)

WWBN AVideo is an open source video platform. In versions 29.0 and prior, the locale save endpoint locale/save.php constructs a file path by directly concatenating $POST'flag' into the path at line 30 without any sanitization. The $POST'code' parameter is then written verbatim to that path via...

CVE-2026-40909 WWBN AVideo has a Path Traversal in Locale Save Endpoint that Enables Arbitrary PHP File Write to Any Web-Accessible Directory (RCE)

WWBN AVideo is an open source video platform. In versions 29.0 and prior, the locale save endpoint locale/save.php constructs a file path by directly concatenating $POST'flag' into the path at line 30 without any sanitization. The $POST'code' parameter is then written verbatim to that path via...

UNIX Symbolic Link (Symlink) Following

Overview @anthropic-ai/claude-code is an Use Claude, Anthropic's AI assistant, right from your terminal. Claude can understand your codebase, edit files, run terminal commands, and handle entire workflows for you. Affected versions of this package are vulnerable to UNIX Symbolic Link Symlink...

Claude Code: Sandbox Escape via Symlink Following Allows Arbitrary File Write Outside Workspace

Claude Code's sandbox did not prevent sandboxed processes from creating symlinks pointing to locations outside the workspace. When Claude Code subsequently wrote to a path within such a symlink, its unsandboxed process followed the symlink and wrote to the target location outside the workspace...

GHSA-VP62-R36R-9XQP Claude Code: Sandbox Escape via Symlink Following Allows Arbitrary File Write Outside Workspace

Claude Code's sandbox did not prevent sandboxed processes from creating symlinks pointing to locations outside the workspace. When Claude Code subsequently wrote to a path within such a symlink, its unsandboxed process followed the symlink and wrote to the target location outside the workspace...

EUVD-2019-20151

Seeyon OA A8 contains an unauthenticated arbitrary file write vulnerability in the /seeyon/htmlofficeservlet endpoint that allows remote attackers to write arbitrary files to the web application root by sending specially crafted POST requests with custom base64-encoded payloads. Attackers can wri...

CVE-2026-41193

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, FreeScout's module installation feature extracts ZIP archives without validating file paths, allowing an authenticated admin to write files arbitrarily on the server filesystem via a specially crafted ZIP...

CVE-2026-40611

Let's Encrypt client and ACME library written in Go Lego. Prior to 4.34.0, the webroot HTTP-01 challenge provider in lego is vulnerable to arbitrary file write and deletion via path traversal. A malicious ACME server can supply a crafted challenge token containing ../ sequences, causing lego to...

DEBIAN-CVE-2026-40611

Let's Encrypt client and ACME library written in Go Lego. Prior to 4.34.0, the webroot HTTP-01 challenge provider in lego is vulnerable to arbitrary file write and deletion via path traversal. A malicious ACME server can supply a crafted challenge token containing ../ sequences, causing lego to...

CVE-2026-40611 Lego: Arbitrary File Write via Path Traversal in Webroot HTTP-01 Provider

Let's Encrypt client and ACME library written in Go Lego. Prior to 4.34.0, the webroot HTTP-01 challenge provider in lego is vulnerable to arbitrary file write and deletion via path traversal. A malicious ACME server can supply a crafted challenge token containing ../ sequences, causing lego to...

CVE-2026-40611

Let's Encrypt client and ACME library written in Go Lego. Prior to 4.34.0, the webroot HTTP-01 challenge provider in lego is vulnerable to arbitrary file write and deletion via path traversal. A malicious ACME server can supply a crafted challenge token containing ../ sequences, causing lego to...

CVE-2026-40611 Lego: Arbitrary File Write via Path Traversal in Webroot HTTP-01 Provider

Let's Encrypt client and ACME library written in Go Lego. Prior to 4.34.0, the webroot HTTP-01 challenge provider in lego is vulnerable to arbitrary file write and deletion via path traversal. A malicious ACME server can supply a crafted challenge token containing ../ sequences, causing lego to...

CVE-2026-40611

Technical details about CVE-2026-40611 are not publicly available in the provided documents; these sources confirm the vulnerability description but do not include affected versions, specifics, exploit status, or patches. Monitor for updates.

CVE-2026-40611 Lego: Arbitrary File Write via Path Traversal in Webroot HTTP-01 Provider

Let's Encrypt client and ACME library written in Go Lego. Prior to 4.34.0, the webroot HTTP-01 challenge provider in lego is vulnerable to arbitrary file write and deletion via path traversal. A malicious ACME server can supply a crafted challenge token containing ../ sequences, causing lego to...

nbconvert has an Arbitrary File Write via Path Traversal in Cell Attachment Filenames

Arbitrary File Write via Path Traversal in Cell Attachment Filenames Summary nbconvert allows arbitrary file writes to locations outside the intended output directory when processing notebooks containing crafted cell attachment filenames. The ExtractAttachmentsPreprocessor passes attachment...

GHSA-4C99-QJ7H-P3VG nbconvert has an Arbitrary File Write via Path Traversal in Cell Attachment Filenames

Arbitrary File Write via Path Traversal in Cell Attachment Filenames Summary nbconvert allows arbitrary file writes to locations outside the intended output directory when processing notebooks containing crafted cell attachment filenames. The ExtractAttachmentsPreprocessor passes attachment...