CVE-2026-88939
Received Received - Intake

Project.set Permission Bypass in Known 0.33.0

Publication date: 2026-09-10

Last updated on: 2026-09-10

Assigner: VulnCheck

Description
knowns through 0.33.0 exempts the project.set action from permission guard checks unconditionally, allowing read-only agent sessions to bypass restrictions. Attackers can invoke project.set to repoint the server at another project directory and obtain write access capabilities.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-09-10
Last Modified
2026-09-10
Generated
2026-09-10
AI Q&A
2026-09-10
EPSS Evaluated
N/A
NVD
CVE-2026-88939
EUVD
EUVD-2026-75582

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
knowns knowns to 0.33.0 (inc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-863 The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

CVE-2026-88939 is an authorization bypass vulnerability in the knowns software versions up to 0.33.0. The project.set action is exempt from permission checks, allowing read-only agent sessions to bypass restrictions. Attackers can use this to repoint the server to another project directory and gain write access capabilities.

Detection Guidance

Check if the knowns software version is 0.33.0 or earlier. Inspect server logs for unauthorized project.set action invocations by read-only agent sessions. Review permission guard logs to confirm bypass attempts.

Impact Analysis

An attacker with read-only access could escalate privileges to write access, potentially modifying project data, configurations, or executing unauthorized actions. This could lead to data corruption, unauthorized access, or further system compromise depending on the project's sensitivity.

Compliance Impact

This vulnerability could violate compliance requirements that mandate strict access controls and data integrity, such as GDPR's data protection principles or HIPAA's access control safeguards. Unauthorized write access may lead to data breaches or integrity violations, triggering regulatory penalties.

Mitigation Strategies

Upgrade knowns to a version beyond 0.33.0 where the permission exemption is fixed. Temporarily restrict project.set action access for read-only sessions until patched. Monitor for unauthorized project directory repointing attempts.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-88939. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart