Browserbase Skills up to 20260526 Autobrowse Trace Artifact default permission

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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3.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in Browserbase Skills up to 20260526 and classified as problematic. Affected is an unknown function of the component Autobrowse Trace Artifact Handler. This manipulation causes default permission. This vulnerability appears as CVE-2026-12823. The attack requires local access. In addition, an exploit is available. 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.

Detailsinfo

A vulnerability has been found in Browserbase Skills up to 20260526 and classified as problematic. Affected by this vulnerability is an unknown part of the component Autobrowse Trace Artifact Handler. The manipulation with an unknown input leads to a default permission vulnerability. The CWE definition for the vulnerability is CWE-276. During installation, installed file permissions are set to allow anyone to modify those files. As an impact it is known to affect confidentiality.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-12823. The exploitation appears to be easy. An attack has to be approached locally. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1222 for this issue.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure. The first version of the CVE listed Browserbase itself as affected product. This was incorrect as this issue does affect browserbase/skills instead.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-38204). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.1

VulDB Base Score: 3.3
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 3.3
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Default permission
CWE: CWE-276 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Programming Language: 🔒
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

06/21/2026 Advisory disclosed
06/21/2026 +0 days VulDB entry created
07/03/2026 +12 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2026-12823 (🔒)
GCVE (CVE): GCVE-0-2026-12823
GCVE (VulDB): GCVE-100-372613
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/21/2026 15:22
Updated: 07/03/2026 10:22
Changes: 06/21/2026 15:22 (54), 06/21/2026 18:15 (1), 06/21/2026 18:16 (1), 06/22/2026 03:18 (1), 06/26/2026 13:48 (31), 07/03/2026 06:09 (5), 07/03/2026 10:22 (1)
Complete: 🔍
Submitter: vaibhavnarkhede
Committer: vaibhavnarkhede
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #837600: Browserbase Browserbase Skills latest main branch prior to fix (tested May 2026) Information Disclosure / Insecure File Permissions (by vaibhavnarkhede)

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