CVE-2026-8859, Langflow OSS: path-traversal arbitrary file write (fixed 1.10.1)

Two corrections to that entry, both of which change what a defender does. This entry supersedes its guidance on the points below; the rest of it stands.

The fix line is 1.10.2, not 1.10.1. The earlier entry described the July batch as fixed in Langflow OSS 1.10.1 and its action item advised upgrading to that release. At least one CVE in the same batch is not covered by it: CVE-2026-14499 "could allow an authenticated user to execute arbitrary commands with elevated privileges on the system due to improper validation of user supplied input in the Python Interpreter component", affects "Langflow OSS 1.0.0-1.10.1" at CVSS 8.8, and IBM "strongly recommends addressing the vulnerability now by upgrading Langflow OSS to version 1.10.2" (IBM Security Bulletin, 2026-07-14). Because 1.10.1 is inside the affected range rather than outside it, an estate that acted on the earlier guidance is patched against the rest of the batch and still exposed to this one. The component is the Python Interpreter node, so the exposure is largest wherever Langflow flows are authored or run by more than a small set of trusted operators; an authenticated user is the only prerequisite.

CVE-2026-0770 does not depend on AUTO_LOGIN. The earlier entry recorded that CVE's affected condition as Langflow running with AUTO_LOGIN=true and unchanged default credentials, and recorded no version patch, framing the remediation as disabling AUTO_LOGIN and rotating credentials. The discloser's own per-vulnerability advisory contradicts the precondition: "Authentication is not required to exploit this vulnerability", with the flaw located in the handling of the exec_globals parameter passed to the validate endpoint, scored CVSS 9.8, and no configuration prerequisite stated anywhere in the advisory (Zero Day Initiative, 2026-01-09). ZDI's advisory does say that, at its January publication, "Given the nature of the vulnerability, the only salient mitigation strategy is to restrict interaction with the product" (Zero Day Initiative, 2026-01-09), which is where the "no version patch" line came from, and which reflects the position in January rather than today. So the practical correction is narrower than "the status was wrong": the entry carried a six-month-old mitigation posture as current, when the operative remediation now is the version upgrade that this entry's other correction already requires.

Triage: for CVE-2026-14499 the observable is command execution parented by the Langflow application process, a Python interpreter or shell child spawned from the Langflow server rather than from an operator's terminal. Legitimate use of the Python Interpreter component produces the same shape, which is why the discriminator is the account and the content rather than the lineage alone: executions attributed to a user who does not normally author flows, or occurring outside the hours when flows are edited, are the reviewable set. Version inventory is the higher-signal check here, an instance on 1.10.1 or earlier is affected regardless of what its telemetry shows.