EUVD-2026-94123
GHSA-frvf-4f3j-8j6r
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Network-reachable (AV:N), low complexity (AC:L), and requires a low-privilege authenticated account (PR:L); arbitrary code execution yields full C/I/A impact with no scope change.
Primary rating from Vendor (ibm).
CVSS VectorVendor: ibm
Lifecycle Timeline
2DescriptionCVE.org
IBM Langflow OSS 1.0.0 through 1.12.2 could allow a remote authenticated attacker to execute arbitrary code due to improper input validation.
AnalysisAI
Authenticated remote code execution in IBM Langflow OSS 1.0.0 through 1.12.2 lets any user who can log in to the instance run arbitrary code on the host, because the platform fails to properly constrain attacker-supplied input before it reaches a code-execution path. The flaw carries a CVSS 3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), meaning low-complexity, network-reachable exploitation that requires only a low-privileged account but yields full confidentiality, integrity, and availability impact - no user interaction and no elevated privileges are needed. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires a valid authenticated session on the target Langflow OSS instance (CVSS PR:L), so exploitation is limited to users who already have an account or attackers who obtain/forge credentials; it cannot be triggered by a fully anonymous remote attacker against a default install. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a credible operational priority rather than an inflated high-CVSS figure. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Patch status is: Patch available per vendor advisory - IBM has released a fix for CVE-2026-97678, and the exact patched build should be confirmed against the vendor advisory at https://www.ibm.com/support/pages/node/7290694 before upgrading, since the provided data does not name a specific fixed version. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Langflow OSS deployments and confirm which run versions 1.0.0 through 1.12.2; where those instances are reachable from untrusted or broad internal networks, restrict access via firewall rules, network segmentation, or reverse-proxy allow-listing, and review the account roster to identify and disable stale, shared, or over-provisioned logins. …
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Same weakness CWE-693 – Protection Mechanism Failure
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External POC / Exploit Code
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