lightpanda-io Lightpanda up to 0.2.8 HTTP Request fetch/XMLHttpRequest credentials cross-domain policy

Summaryinfo

A vulnerability classified as problematic was found in lightpanda-io Lightpanda up to 0.2.8. The affected element is the function fetch/XMLHttpRequest of the component HTTP Request Handler. Executing a manipulation of the argument credentials can lead to cross-domain policy. This vulnerability is registered as CVE-2026-52843. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in lightpanda-io Lightpanda up to 0.2.8. It has been declared as problematic. This vulnerability affects the function fetch/XMLHttpRequest of the component HTTP Request Handler. The manipulation of the argument credentials with an unknown input leads to a cross-domain policy vulnerability. The CWE definition for the vulnerability is CWE-942. The product uses a cross-domain policy file that includes domains that should not be trusted. As an impact it is known to affect confidentiality. CVE summarizes:

Lightpanda is a headless browser designed for AI and automation. Prior to 0.2.9, Lightpanda fetch() and XMLHttpRequest unconditionally attached session cookies to every HTTP request, ignoring credentials: omit, credentials: same-origin, credentials: include, and XMLHttpRequest.withCredentials, allowing an attacker-controlled origin in a Lightpanda session to issue authenticated cross-origin requests against a victim origin. This issue is fixed in version 0.2.9.

The advisory is available at github.com. This vulnerability was named CVE-2026-52843 since 06/08/2026. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

Upgrading to version 0.2.9 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• lightpanda-io

Name

• Lightpanda

Version

• 0.2.0
• 0.2.1
• 0.2.2
• 0.2.3
• 0.2.4
• 0.2.5
• 0.2.6
• 0.2.7
• 0.2.8

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion