CVE-2026-7404 json
getsimpletool mcpo-simple-server base_manager.py delete_shared_prompt path traversal
published 2026-04-29 6 mo ago modified 2026-10-26 13 d ago also GHSA-3jmq-qhg3-f58j , PYSEC-2026-2632 , EUVD-2026-26288
- cvss
- 7.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 43%
- public exploits
- 0
- none known
Summary
A weakness has been identified in getsimpletool mcpo-simple-server up to 0.2.0. Affected is the function delete_shared_prompt of the file src/mcpo_simple_server/services/prompt_manager/base_manager.py. This manipulation of the argument detail causes relative path traversal. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 6 mo ago
Exploit prediction
0.51% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/getsimpletool/mcpo-simple-server/issues/4 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P |
| CNA | 3.1 | 7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R |
| CNA | 3.0 | 7.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R |
| CNA | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR |
| CNA | 4.0 | 5.5 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| CNA | 3.1 | 7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
| CNA | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| GitHub | 3.1 | 7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
| OSV | 3.1 | 7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | mcpo-simple-server | <=0.2.0 |
no fix listed |
Affected products
- getsimpletool mcpo-simple-server
Classification
References
-
github.com
/getsimpletool/mcpo-simple-server/issues/4
exploit, issue-tracking, web
-
vuldb.com
/vuln/360140
vdb-entry, technical-description, web
-
vuldb.com
/vuln/360140/cti
signature, permissions-required, web
-
vuldb.com
/submit/803612
third-party-advisory, web
-
github.com
/getsimpletool/mcpo-simple-server/
product
-
nvd.nist.gov
/vuln/detail/CVE-2026-7404
advisory
-
github.com
/getsimpletool/mcpo-simple-server
package
-
pypi.org
/project/mcpo-simple-server
package
-
github.com
/advisories/GHSA-3jmq-qhg3-f58j
advisory
Sources
- CVE List CVE-2026-7404
- GitHub Advisory GHSA-3jmq-qhg3-f58j
- NVD CVE-2026-7404
- OSV PYSEC-2026-2632
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