A critical Splunk Enterprise flaw disclosed earlier this month is now being exploited in the wild, and CISA has added it to its known-exploited list with a June 21 federal patch deadline. The bug (CVE-2026-20253, rated 9.8) is a missing-authentication issue in a PostgreSQL sidecar service: an unauthenticated, network-reachable attacker can create or truncate arbitrary files on the Splunk host, which can cascade into log corruption, broken monitoring, and remote code execution. Both Splunk and Resecurity have confirmed active exploitation, and a public proof-of-concept and Nuclei template exist. Because Splunk underpins many SOC and SIEM operations, a compromise can blind defenders.
CrowdStrike disclosed CVE-2026-40050 on April 21, a critical unauthenticated path traversal in a specific cluster API endpoint of self-hosted LogScale (formerly Humio). CVSS 9.8. A remote attacker who can reach the endpoint can read arbitrary files from disk - including config files, certificates, embedded credentials, and the very logs the platform was deployed to protect. CrowdStrike found the bug through internal product testing and applied network-layer blocks across all SaaS clusters on April 7. Self-hosted customers must patch themselves. There is no evidence of in-the-wild exploitation yet.
TrustStrike Labs