← CVE Intelligence

CVE-2026-52842

Lightpanda:URL parser misidentifies page origin for URLs containing @ in the path - Same-Origin Policy bypass PUBLISHED

Description (CNA)

Lightpanda is a headless browser designed for AI and automation. Prior to 0.3.1, Lightpanda searched for @ across the entire URL string instead of only the authority component when computing a page origin, so a URL such as `http://attacker.com/@victim.com/` was fetched from attacker.com but treated as `http://victim.com`, allowing a complete Same-Origin Policy bypass. This issue is fixed in version 0.3.1.

Affected (CNA)

Vendor / productVersions
lightpanda-io / browseraffected < 0.3.1

CWE

CWE-346

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.