Medium severity · published Aug 6, 2026
CVE-2026-18992
zhayujie CowAgent Self-Evolution Review Agent executor.py _select_tools authorization
6.3
CVSS
0.4%
EPSS
No
On KEV
Description
A vulnerability was detected in zhayujie CowAgent up to 2.1.1. This vulnerability affects the function _select_tools of the file agent/evolution/executor.py of the component Self-Evolution Review Agent. Performing a manipulation results in incorrect authorization. The attack is possible to be carried out remotely. The exploit is now public and may be used.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 30% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
CowAgent · zhayujie
2.1.0; 2.1.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-18992
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-18992
github.com
https://github.com/zhayujie/CowAgent/
github.com
https://github.com/zhayujie/CowAgent/issues/2904
github.com
https://github.com/zhayujie/CowAgent/issues/2904#issuecomment-4756833239
vuldb.com
https://vuldb.com/cve/CVE-2026-18992
vuldb.com
https://vuldb.com/submit/862609
vuldb.com
https://vuldb.com/vuln/386368
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