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...

EUVD-2026-64763

fast-uri vulnerable to server-side request forgery via repeated hostname percent-decoding...

CVE-2026-19264

CVE-2026-19264 - Path Traversal no autenticado hasta la toma de control total de la instancia en Postiz Autor: Krithik Babu P @DarkLycn1976 Publicado: 2026-08-10 CVE: CVE-2026-19264 Severidad: Crítica - CVSS 4.0 9.3 / CVSS 3.1 9.8 CWE: CWE-22 - Limitación inapropiada de un nombre de ruta a un...

fast-uri: fast-uri: Server-Side Request Forgery via repeated hostname percent-decoding

A flaw was found in fast-uri, a URI parser for Node.js. The component incorrectly decodes percent escapes in a hostname twice during URI parsing and authority recomposition. This double decoding can allow a remote attacker to manipulate a URI to point to a different network destination, such as a...

Linux Distros Unpatched Vulnerability : CVE-2026-75899

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fast-uri is a URI parser for Node.js. It decodes percent escapes in a hostname during parsing and then decodes the parsed hostname a second time during authorit...

Double Decoding of the Same Data

Overview fast-uri is a Dependency-free RFC 3986 URI toolbox Affected versions of this package are vulnerable to Double Decoding of the Same Data through hostname normalization in normalize and resolve and the authority recomposition logic in index.js and lib/utils.js. An attacker can redirect an...

CVE-2026-75899

fast-uri , a URI parser for Node.js, suffers from double percent-decoding of the hostname: it decodes percent escapes during parsing and decodes them again during authority recomposition. This violates RFC 3986 §2.4 (an implementation must not decode the same string more than once) and allows a s...

PT-2026-80191

Name of the Vulnerable Software and Affected Versions fast-uri versions 2.4.1 through 2.4.4 fast-uri versions 3.1.2 through 3.1.5 fast-uri versions 4.0.0 through 4.1.2 Description This URI parser for Node.js decodes percent escapes in a hostname during parsing and subsequently decodes the parsed...

CVE-2026-71236 Grocy - Stored XSS via HTMLPurifier Output Double-Decode

Grocy's API request-body parser controllers/Api/BaseApiController.php, GetParsedAndFilteredRequestBody purifies incoming field values with HTMLPurifier, then manually reverses HTML-entity encoding of the resulting output by replacing , , and back to , and & immediately after purification...

CVE-2026-71236

Grocy is affected by CVE-2026-71236 due to a flaw in its API request-body parser: after HTMLPurifier cleans values, the code re-decodes certain HTML entities (<, >, &) to , and &, effectively reconstructing live HTML/script tags. This double-decoding reintroduces stored XSS in API-writa...

CVE-2026-71236 Grocy - Stored XSS via HTMLPurifier Output Double-Decode

Grocy's API request-body parser controllers/Api/BaseApiController.php, GetParsedAndFilteredRequestBody purifies incoming field values with HTMLPurifier, then manually reverses HTML-entity encoding of the resulting output by replacing , , and back to , and & immediately after purification...

EUVD-2026-51438

The Frontend Admin by DynamiApps WordPress plugin before 3.29.9 decodes HTML entities in a submitted form field value after sanitizing it, which restores HTML tags that the sanitizer had neutralized. A double-encoded payload submitted by an unauthenticated visitor is therefore stored as a live ta...

PYSEC-2026-1641 mlflow vulnerable to Path Traversal

A path traversal vulnerability exists in the mlflow/mlflow repository, specifically within the artifact deletion functionality. Attackers can bypass path validation by exploiting the double decoding process in the deleteartifactmlflowartifacts handler and localfileuritopath function, allowing for...

Directory Traversal

SiYuan is vulnerable to Directory Traversal. The vulnerability is due to improper handling of double URL decoding in the serveExport function, which allows an attacker to use double-encoded traversal sequences to read arbitrary files from the workspace...

GHSA-HJH7-R5W8-5872 SiYuan: Path Traversal via Double URL Encoding in `/export/` Endpoint (Incomplete Fix Bypass for CVE-2026-30869)

Summary The fix for CVE-2026-30869 in SiYuan v3.5.10 only added a denylist check IsSensitivePath but did not address the root cause — a redundant url.PathUnescape call in serveExport. An authenticated attacker can use double URL encoding %252e%252e to traverse directories and read arbitrary...

GHSA-72GR-QFP7-VWHW h3: Double Decoding in `serveStatic` Bypasses `resolveDotSegments` Path Traversal Protection via `%252e%252e`

Summary The serveStatic utility in h3 applies a redundant decodeURI call to the request pathname after H3Event has already performed percent-decoding with %25 preservation. This double decoding converts %252e%252e into %2e%2e, which bypasses resolveDotSegments since it checks for literal...

h3: Double Decoding in `serveStatic` Bypasses `resolveDotSegments` Path Traversal Protection via `%252e%252e`

Summary The serveStatic utility in h3 applies a redundant decodeURI call to the request pathname after H3Event has already performed percent-decoding with %25 preservation. This double decoding converts %252e%252e into %2e%2e, which bypasses resolveDotSegments since it checks for literal...

EUVD-2014-3586

Malware in sbrugna...

EUVD-2024-1104

Malicious code in bioql PyPI...

Path Traversal

mlflow is vulnerable to a path traversal vulnerability. The vulnerability is due to an extra unquote operation in the deleteartifacts function of localartifactrepo.py, which fails to properly sanitize user-supplied paths. Attackers can exploit the double decoding process in the...