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High 7.5Published Aug 19, 2026
CVE-2026-19875Unauthenticated Registration POST Endpoint Permits Admin Email Overwrite and Outbound Relay Abuse in Langflow
Updated under an hour ago ()
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It affects IBM Langflow OSS and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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IBM Langflow OSS 1.0.0 through 1.10.0 could allow a remote attacker to overwrite administrator email information and abuse the server as an outbound relay due to missing authentication for the registration endpoint.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Weakness (CWE)
- CWE-306
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- ibm
- NVD analysis
- Analyzed
- Record last updated
- Aug 20, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
IBM Langflow OSS ibm:langflow | from 1.0.0 through 1.10.0 | CNA record |
langflow langflow langflow:langflow | from 1.0.0 before 1.10.1 | NVD |
References
- https://www.ibm.com/support/pages/node/7283810vendor-advisory, patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.