Low severity · published May 12, 2026
CVE-2026-42158
Flowsint: Broken Access Control allows modification of investigation metadata from any user
2.3
CVSS
0.2%
EPSS
No
On KEV
Description
Flowsint is an open-source OSINT graph exploration tool designed for cybersecurity investigation, transparency, and verification. Prior to 1.2.3, an adversary with knowledge of an investigation ID, could update the metadata of an investigation of another user. This vulnerability is fixed in 1.2.3.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 12% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FL
flowsint · reconurge
< 1.2.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-42158
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-42158
github.com
https://github.com/reconurge/flowsint/security/advisories/GHSA-5h6v-5hv3-3jjw
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