CVE-2026-31241Public exploitNetwork attack vector

Unauthenticated memory deletion via unprotected API

Published May 12, 2026 · Updated May 12, 2026

Missing authentication and authorization in mem0 server 1.0.0 allows remote attackers to delete arbitrary users' memory records. The DELETE /memories handler accepts user_id, run_id, or agent_id query parameters and deletes matching records without authenticating the requester or checking ownership. Network access to the self-hosted API is sufficient; successful requests erase stored memory data and can interrupt dependent services.

CVSS severityUnavailable
Unscored
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication and authorization in mem0 server 1.0.0 allows remote attackers to delete arbitrary users' memory records. The DELETE /memories handler accepts user_id, run_id, or agent_id query parameters and deletes matching records without authenticating the requester or checking ownership. Network access to the self-hosted API is sufficient; successful requests erase stored memory data and can interrupt dependent services.

The record

CVE
CVE-2026-31241
Published
May 12, 2026
Updated
May 12, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1485
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 12, 2026CVE publishedPublication date reported by the CVE source.
  2. May 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1485Data Destruction

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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