Attackers are exploiting a security hole in Langflow that can let outsiders take over internet-exposed servers without logging in. The flaw, CVE-2026-5027, is an unauthenticated remote-code-execution bug affecting Langflow, an open-source tool for building AI workflows; exploitation means attackers can send crafted requests to run their own commands on vulnerable systems, and the article says no patch is available yet.
Ionut Arghire
2026.07.08
46% relevant
This article references ongoing Langflow exploitation but for a different underlying flaw, adding that attackers chained the newer KEV-listed CVE-2026-55255 with the earlier Langflow RCE bug CVE-2026-33017 in observed attacks.
Sergiu Gatlan
2026.07.08
77% relevant
This updates the broader ongoing Langflow exploitation story by adding a separate actively exploited flaw, CVE-2026-55255, that CISA has now placed in the KEV catalog with a federal patch deadline. It also ties current Langflow exploitation to prior abused flaws including CVE-2025-3248 and references financially motivated post-compromise activity targeting compute and credentials.
info@thehackernews.com (The Hacker News)
2026.07.08
78% relevant
This article adds that CISA has now formally added Langflow CVE-2026-5027 to the Known Exploited Vulnerabilities catalog, confirming active exploitation at the federal-priority level and raising urgency for exposed Langflow deployments.
info@thehackernews.com (The Hacker News)
2026.06.30
96% relevant
This is the same underlying event: exploitation of the unpatched Langflow RCE flaw CVE-2026-5027 on internet-exposed AI workflow servers. The new detail is that attackers are now deploying Monero cryptomining malware on compromised endpoints, showing concrete post-exploitation activity and impact.
Ionut Arghire
2026.06.11
98% relevant
This article is a direct update on the same Langflow event, adding VulnCheck's confirmation of in-the-wild exploitation, details that attackers used the vulnerable POST /api/v2/files endpoint plus default unauthenticated auto-login to get a session token, and an estimate of roughly 7,000 internet-accessible instances.
Bill Toulas
2026.06.10
95% relevant
This article updates the same underlying event by adding that exploitation of CVE-2026-5027 is being observed now, describing the bug as a path traversal in the file upload endpoint, noting arbitrary file write as the immediate impact, and pointing users to the latest Langflow release 1.10.0 while referencing prior fixes in langflow-base 0.8.3 and Langflow 1.9.0.
info@thehackernews.com (The Hacker News)
2026.06.10
100% relevant
This article appears to be the initial report of active exploitation of CVE-2026-5027 in Langflow, and no existing tracked story covers this specific flaw or product.