What is CVE-2026-104335?
IBM Langflow OSS 1.0.0 through 1.12.2 could allow a remote authenticated attacker to execute arbitrary code due to improper access control.
The record classifies CVE-2026-104335 under weakness class CWE-284. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 5 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 8.8 — HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS (FIRST)
- 0.5% probability of exploitation in the next 30 days, higher than 45.2% of all scored CVEs
- CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 8.2/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2026-10-06, last modified 2026-10-08
Is CVE-2026-104335 being exploited?
Weaponised exploit code for CVE-2026-104335 is publicly available. 1 public proof-of-concept repository is tracked for this identifier. It currently carries a trending score of 53 in the Threadlinqs vulnerability feed.
- Farih123/CVE-2026-104335 (github)
Affected products and versions
- IBM: Langflow OSS
How to fix CVE-2026-104335
No vendor patch reference has been recorded for CVE-2026-104335 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.
Threat activity tracking CVE-2026-104335
1 tracked threat in the Threadlinqs corpus references CVE-2026-104335, either in the campaign’s CVE list or as an indicator on the campaign record.
Sources
Enriched from CVE.org, FIRST EPSS, GitHub Security Advisories, public proof-of-concept repositories. Last verified by Threadlinqs on .