Privilege escalation in Browserbase Skills
CVE-2026-12823
A security flaw has been discovered in Browserbase Skills 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 first version of the CVE listed Browserbase itself as affected product. This was incorrect as this issue does affect browserbase/skills instead. The vendor was contacted early about this disclosure.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (4.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 4.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Browserbase Skills — versions 20260526
- Browserbase — versions 20260526
Weakness classification (CWE)
References
- vuldb.com/vuln/372613 (vdb-entry)
- vuldb.com/vuln/372613/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-12823 (third-party-advisory)
- vuldb.com/submit/837600 (third-party-advisory)
- github.com/NARKHEDE-VAIBHAV/poc/blob/main/CVE-2026-12823 - Browserbase Skills A… (exploit)
- github.com/NARKHEDE-VAIBHAV/poc/blob/main/CVE-2026-12823 - Browserbase Skills A… (exploit)
Frequently asked questions
- What is CVE-2026-12823?
- CVE-2026-12823 is a low-severity vulnerability in Browserbase Skills, classified under Incorrect Privilege Assignment. CVSS score: 3.3/10. Published 2026-06-22.
- How severe is CVE-2026-12823?
- Low severity. CVSS v3 base score is 3.3 out of 10.