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CVE-2026-12823

Browserbase Autobrowse Trace Artifact default permission

CVSS 4.8 MEDIUMEPSS 0.1%CWE-266CWE-276
Vexday Risk Score
33Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
CVSS 4.8EPSS 0.1%KEV nãoPoC públicaNuclei —Metasploit —Patch —
Lifecycle
21 Jun 2026Published on NVD
Recommendation: Plan a near-term fix — a public PoC already exists.
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.
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
Affected products
n/a · Browserbase
public PoCs found — 2
cve_referencegithub.com/NARKHEDE-VAIBHAV/poc/blob/main/CVE-2026-12823%20-%20Browserbase%20Skills%20Autobrowse%20Trace%20Artifact%20Insecure%20File%20Permissions/Advisory.mdunverifiedcve_referencegithub.com/NARKHEDE-VAIBHAV/poc/blob/main/CVE-2026-12823%20-%20Browserbase%20Skills%20Autobrowse%20Trace%20Artifact%20Insecure%20File%20Permissions/poc.shunverified
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References
https://github.com/NARKHEDE-VAIBHAV/poc/blob/main/CVE-2026-12823%20-%20Browserbase%20Skills%20Autobrowse%20Trace%20Artifact%20Insecure%20File%20Permissions/Advisory.mdhttps://github.com/NARKHEDE-VAIBHAV/poc/blob/main/CVE-2026-12823%20-%20Browserbase%20Skills%20Autobrowse%20Trace%20Artifact%20Insecure%20File%20Permissions/poc.shhttps://vuldb.com/cve/CVE-2026-12823https://vuldb.com/submit/837600https://vuldb.com/vuln/372613https://vuldb.com/vuln/372613/cti