CVE-2026-95626 Tauri framework v2 CSP nonce protection bypass via data and blob URI schemes allows an XSS to RCE chains
Attackers can bypass CSP nonce protections in Tauri apps using data or blob URIs to execute arbitrary scripts, potentially leading to remote code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-95626?
CVE-2026-95626 is a high-severity cross-site scripting vulnerability in tauri, published on 23 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Tauri's Content Security Policy hardening, which injects a random nonce to restrict script execution, provides zero protection when an application includes data: or blob: in its script-src directive. Per the CSP Level 3 specification, these scheme sources remain active even when a nonce is present, allowing arbitrary script execution without knowing the nonce.
Weakness: CWE-79
Which versions are affected by CVE-2026-95626?
How do I fix CVE-2026-95626?
No fix has been published for CVE-2026-95626 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-95626 being exploited?
There is no known exploitation of CVE-2026-95626 in the wild and no public exploit code.
Sources
Also known as GHSA-757j-xrg3-9g6p.