https://db.gcve.eu/rss/recent/all/10 Most recent entries from all 2026-11-11T07:15:48.067744+00:00 Vulnerability-Lookup info@gcve.eu python-feedgen Contains only the most 10 recent entries. https://db.gcve.eu/vuln/fkie_cve-2026-34157 fkie_cve-2026-34157 2026-11-11T07:15:48.069347+00:00

Wails is a framework for building desktop applications using Go and web technologies. From 2.0.0 until 2.13.0, BindingsAllowedOrigins in v2/internal/frontend/originvalidator/originValidator.go passes wildcard patterns to wildcardPatternToRegex, which expands every asterisk to an unrestricted regular-expression match. When an application configures a trailing or partial-label wildcard immediately after an allowed domain, an attacker-controlled lookalike origin can match the allowed suffix and invoke bound Go methods through IPC. A complete-component subdomain wildcard is an unaffected configuration. The resulting confidentiality, integrity, and availability impact depends on the file, database, command, credential, or other operations exposed by the application's bound methods. This issue is fixed in version 2.13.0.

 https://db.gcve.eu/vuln/ghsa-47hv-j4px-h3c9 GHSA-47hv-j4px-h3c9 — Wails: wildcardPatternToRegex allows Origin bypass via suffix match in BindingsAllowedOrigins 2026-11-11T07:15:48.069427+00:00

Affected: Go: github.com/wailsapp/wails/v2

# Security Vulnerability Report: Wails v2 — Origin Validator Bypass via Wildcard Pattern

| | | |---|---| | **Product** | wailsapp/wails (v2) | | **Affected File** | `v2/internal/frontend/originvalidator/originValidator.go` | | **Affected Versions** | All versions containing originValidator (latest as of 2026-03-26) | | **CVSSv4.0** | **7.6 HIGH** — `CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:L/SC:L/SI:L/SA:N` | | **CWE** | CWE-625: Permissive Regular Expression | | **Platforms** | Windows / Linux / macOS (all desktop targets) |

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## Summary

Wails v2 provides `BindingsAllowedOrigins` to restrict which web origins can invoke Go backend methods via IPC. The wildcard pattern matching in `wildcardPatternToRegex` converts `*` to `.*` without anchoring subcomponents, allowing suffix-matched origins to bypass the restriction.

An attacker who controls a domain sharing a prefix with the allowed origin (e.g., `myapp.community` when `myapp.com*` is configured) can invoke arbitrary bound Go methods, potentially achieving file system access, data exfiltration, or code execution depending on the application's exposed API surface.

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## Vulnerability Details

### Root Cause

`wildcardPatternToRegex` converts a wildcard pattern to a regular expression by escaping special characters and replacing `*` with `.*`. The substituted `.*` has no restriction — it matches any character sequence including dots and additional domain components.

### Vulnerable Code

**File:** `v2/internal/…