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PatchSiren cyber security CVE debrief

CVE-2026-59705 mem0 CVE debrief

CVE-2026-59705 is a critical vulnerability in mem0's openmemory/api component. The vulnerability allows unauthenticated attackers to read, write, and delete arbitrary user memories by accessing API routers registered without authentication middleware. Attackers can supply arbitrary user_id parameters or directly access memory retrieval endpoints to expose private memory content, or invoke pause endpoints with global_pause=true to cause denial-of-service across all users.

Vendor
mem0
Product
Unknown
CVSS
CRITICAL 9.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-07
Original CVE updated
2026-07-08
Advisory published
2026-07-07
Advisory updated
2026-07-08

Who should care

Users of mem0's openmemory/api component should be aware of this vulnerability and take immediate action to secure their systems. This vulnerability is particularly concerning because it allows unauthenticated access, which can lead to unauthorized data exposure and manipulation.

Technical summary

The vulnerability in mem0's openmemory/api component is due to the lack of authentication middleware in API routers. This allows attackers to access and manipulate user memories without any authentication. The CVSS score for this vulnerability is 9.3, indicating a critical severity level. The vulnerability can be exploited by supplying arbitrary user_id parameters or directly accessing memory retrieval endpoints.

Defensive priority

High

Recommended defensive actions

  • Immediately apply patches or updates provided by the vendor to enable authentication middleware for API routers.
  • Implement additional security measures such as input validation and access controls to prevent unauthorized access.
  • Monitor systems for suspicious activity and implement incident response plans in case of a potential breach.
  • Conduct thorough inventory checks to identify and address any potential vulnerabilities in the openmemory/api component.
  • Consider implementing compensating controls such as web application firewalls to detect and prevent attacks.

Evidence notes

The evidence for this vulnerability comes from the NVD and the vendor's advisory. The NVD provides a detailed description of the vulnerability, including its CVSS score and vector. The vendor's advisory provides additional information on the vulnerability and recommends applying patches or updates to fix the issue.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-59705 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-59705

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-59705 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-59705

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.