Description
A security flaw has been discovered in Browserbase up to 20260526. This impacts an unknown function of the component Autobrowse Trace Artifact Handler. The manipulation results in incorrect default permissions. The attack requires a local approach. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Severity (CVSS)
| Base score | 4.8 |
|---|---|
| Severity | Medium |
| Version | CVSS 4.0 |
| Vector | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P |
| Provided by | CNA |
Weaknesses
- CWE-276 — Incorrect Default Permissions
- CWE-266 — Incorrect Privilege Assignment
Affected products
| Vendor | Product | Versions |
|---|---|---|
| n/a | Browserbase | 20260526 |
References
- https://vuldb.com/vuln/372613 (vdb-entry)
- https://vuldb.com/vuln/372613/cti (signature permissions-required)
- https://vuldb.com/cve/CVE-2026-12823 (third-party-advisory)
- https://vuldb.com/submit/837600 (third-party-advisory)
- https://github.com/NARKHEDE-VAIBHAV/poc/blob/main/CVE-2026-12823%20-%20Browserbase%20Skills%20Autobrowse%20Trace%20Artifact%20Insecure%20File%20Permissions/Advisory.md (exploit)
- https://github.com/NARKHEDE-VAIBHAV/poc/blob/main/CVE-2026-12823%20-%20Browserbase%20Skills%20Autobrowse%20Trace%20Artifact%20Insecure%20File%20Permissions/poc.sh (exploit)
Generated from the official CVE List on 22 Jun 2026 14:43 UTC.