CVE-2026-31241 json
mem0 server lacks authentication and authorization controls for its memory deletion API endpoint
published 2026-05-12 5 mo ago modified 2026-10-19 20 d ago also GHSA-gq6f-qwv9-rf4j , PYSEC-2026-2634 , EUVD-2026-29564
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 32%
- public exploits
- 0
- none known
Summary
The mem0 1.0.0 server lacks authentication and authorization controls for its memory deletion API endpoint (DELETE /memories). The endpoint allows unauthenticated users to delete memory records by specifying arbitrary user identifiers (e.g., user_id, run_id, agent_id) in the request query parameters. A remote attacker can exploit this by sending unauthenticated DELETE requests to erase memory data for any user, leading to unauthorized data loss and denial of service.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 5 mo ago
Exploit prediction
0.39% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L |
| GitHub | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L |
| OSV | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | mem0ai | <=1.0.0 |
no fix listed |
Classification
References
-
github.com
/mem0ai/mem0
package, product
-
notion.so
/CVE-2026-31241-35d1e139318881459ae5e6f0d7dc6f0f
web, mitigation, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-31241
advisory
-
pypi.org
/project/mem0ai
package
-
github.com
/advisories/GHSA-gq6f-qwv9-rf4j
advisory
Sources
- CVE List CVE-2026-31241
- GitHub Advisory GHSA-gq6f-qwv9-rf4j
- NVD CVE-2026-31241
- OSV PYSEC-2026-2634
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.