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CVE-2026-31240

mem0 server lacks authentication and authorization controls for its memory management API endpoints

7.5 High

The mem0 1.0.0 server lacks authentication and authorization controls for its memory management API endpoints. Critical functions such as updating memory records (PUT /memories/{memory_id}) are exposed without any verification of the requester's identity or permissions. A remote attacker can exploit this by sending unauthenticated requests to modify, overwrite, or delete arbitrary memory records, leading to unauthorized data manipulation and potential data loss.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
None

Exploit likelihood

0.37%Up 0.3 points since May 13, 2026
90%50%10%1%

What each source reports

CVE List Score used 7.5

The mem0 1.0.0 server lacks authentication and authorization controls for its memory management API endpoints. Critical functions such as updating memory records (PUT /memories/{memory_id}) are exposed without any verification of the requester's identity or permissions. A remote attacker can exploit this by sending unauthenticated requests to modify, overwrite, or delete arbitrary memory records, leading to unauthorized data manipulation and potential data loss.

Record
CVE-2026-31240
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-306
Updated
2026-11-02
EUVDEUVD-2026-29563 7.5

The mem0 1.0.0 server lacks authentication and authorization controls for its memory management API endpoints. Critical functions such as updating memory records (PUT /memories/{memory_id}) are exposed without any verification of the requester's identity or permissions. A remote attacker can exploit this by sending unauthenticated requests to modify, overwrite, or delete arbitrary memory records, leading to unauthorized data manipulation and potential data loss.

Record
EUVD-2026-29563
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-jfv9-68m5-gjjr 7.5

mem0 server lacks authentication and authorization controls for its memory management API endpoints

The mem0 1.0.0 server lacks authentication and authorization controls for its memory management API endpoints. Critical functions such as updating memory records (PUT /memories/{memory_id}) are exposed without any verification of the requester's identity or permissions. A remote attacker can exploit this by sending unauthenticated requests to modify, overwrite, or delete arbitrary memory records, leading to unauthorized data manipulation and potential data loss.

Record
GHSA-jfv9-68m5-gjjr
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-306
Updated
2026-11-02
NVD 7.5

The mem0 1.0.0 server lacks authentication and authorization controls for its memory management API endpoints. Critical functions such as updating memory records (PUT /memories/{memory_id}) are exposed without any verification of the requester's identity or permissions. A remote attacker can exploit this by sending unauthenticated requests to modify, overwrite, or delete arbitrary memory records, leading to unauthorized data manipulation and potential data loss.

Record
CVE-2026-31240
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-306
Updated
2026-11-02
OSVGHSA-jfv9-68m5-gjjr 7.5

mem0 server lacks authentication and authorization controls for its memory management API endpoints

The mem0 1.0.0 server lacks authentication and authorization controls for its memory management API endpoints. Critical functions such as updating memory records (PUT /memories/{memory_id}) are exposed without any verification of the requester's identity or permissions. A remote attacker can exploit this by sending unauthenticated requests to modify, overwrite, or delete arbitrary memory records, leading to unauthorized data manipulation and potential data loss.

Record
GHSA-jfv9-68m5-gjjr
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-306
Updated
2026-11-02
OSVPYSEC-2026-2635 7.5

mem0 server lacks authentication and authorization controls for its memory management API endpoints

The mem0 1.0.0 server lacks authentication and authorization controls for its memory management API endpoints. Critical functions such as updating memory records (PUT /memories/{memory_id}) are exposed without any verification of the requester's identity or permissions. A remote attacker can exploit this by sending unauthenticated requests to modify, overwrite, or delete arbitrary memory records, leading to unauthorized data manipulation and potential data loss.

Record
PYSEC-2026-2635
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02

Affected packages

Affected packages
PackageAffectedFixed
mem0ai
PyPI
through 1.0.0 None known
mem0ai
PyPI
through 1.0.0, plus listed versions
0.0.10.0.100.0.110.0.120.0.13
Show 45 moreShow less
0.0.140.0.150.0.160.0.170.0.180.0.190.0.20.0.200.0.20rc10.0.210.0.30.0.40.0.50.0.60.0.70.0.80.0.90.1.00.1.10.1.100.1.1000.1.1010.1.1020.1.1030.1.1040.1.1060.1.1070.1.107rc10.1.107rc20.1.1080.1.1090.1.110.1.1100.1.1110.1.1120.1.1130.1.1140.1.1150.1.1160.1.1170.1.1180.1.120.1.130.1.140.1.15
None known

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-31240 is a high vulnerability (CVSS 7.5) in mem0ai, published May 12, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.37%, the 31st percentile. No source names a fixed version.

References

This page doesn't list everything

Left out here: 104 versions. The JSON record has them.

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