PatchSiren cyber security CVE debrief
CVE-2026-45229 Cp0204 CVE debrief
CVE-2026-45229 is a high-severity vulnerability in Quark Drive before version 0.8.5. The vulnerability is caused by a mass assignment issue in the POST /update endpoint, which allows authenticated attackers to overwrite administrator credentials by posting an arbitrary webui object to the config_data dictionary. This can lead to permanent replacement of stored login credentials, locking out legitimate administrators, and gaining persistent access to all configured tasks, cloud tokens, and notification services. Administrators and users of Quark Drive versions before 0.8.5 should be aware of this vulnerability and take immediate action to update to the latest version. The likely defender workflow involves reviewing the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance, planning vendor-supported updates or mitigations through normal change control where exposure is confirmed, and reviewing compensating controls for exposed systems while remediation is scheduled and verified.
- Vendor
- Cp0204
- Product
- quark-auto-save
- CVSS
- HIGH 8.7
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-05-13
- Original CVE updated
- 2026-07-14
- Advisory published
- 2026-05-13
- Advisory updated
- 2026-07-14
Who should care
Administrators and users of Quark Drive versions before 0.8.5 should be aware of this vulnerability and take immediate action to update to the latest version. Additionally, security teams and IT professionals responsible for managing and securing Quark Drive installations should prioritize patching and monitoring for potential exploitation. Operators, platform administrators, and vulnerability management teams should review the affected scope and severity to determine the necessary course of action.
Technical summary
The vulnerability is caused by insufficient deny-list filtering in the POST /update endpoint, allowing attackers to manipulate the config_data dictionary and overwrite administrator credentials. The CVSS score for this vulnerability is 8.7, indicating a high severity level. The vulnerability is classified as CWE-915. Attackers can exploit this vulnerability to permanently replace stored login credentials, lock out legitimate administrators, and gain persistent access to all configured tasks, cloud tokens, and notification services. This can be achieved by posting an arbitrary webui object to the config_data dictionary.
Defensive priority
High
Recommended defensive actions
- Update Quark Drive to version 0.8.5 or later
- Restrict access to the POST /update endpoint
- Implement additional security measures to prevent exploitation
- Monitor for suspicious activity and potential exploitation attempts
- Conduct regular security audits and vulnerability assessments
- Review compensating controls for exposed systems while remediation is scheduled and verified
- Track exceptions, retest remediated assets, and close the item only after evidence is documented
Evidence notes
The CVE record was published on 2026-05-13T21:16:49.733Z and has not been modified since then. The NVD entry is currently Deferred. The vulnerability was reported by Vulncheck and has a CVSS score of 8.7. The evidence basis for this vulnerability is limited, and defenders should verify the affected scope and severity with the vendor. The CVE record and NVD entry provide the primary source grounding for this vulnerability.
Official resources
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-05-13T21:16:49.733Z and has not been modified since then. The NVD entry is currently Deferred.