# Langflow: PythonREPLComponent executes unsandboxed Python code, enabling authenticated RCE and privilege escalation Advisory record · `GHSA-8qpj-27x8-pwpq` - **Identifiers:** `GHSA-8qpj-27x8-pwpq` · `CVE-2026-10561` · `PYSEC-2026-4231` - **State:** Confirmed - **Severity:** CVSS 10.0 Critical - **Critical:** Yes: CVSS 9+ - **Weakness (CWE):** [CWE-94](https://cwe.mitre.org/data/definitions/94.html) · [CWE-95](https://cwe.mitre.org/data/definitions/95.html) · [CWE-266](https://cwe.mitre.org/data/definitions/266.html) - **Tags:** [Code injection](https://agentprime.io/advisories/tag/code-injection.md) · [Privilege escalation](https://agentprime.io/advisories/tag/privilege-escalation.md) - **Published:** 6 Oct 2026 - **Updated:** 15 Oct 2026 - **Reviewed by a person:** No Published by the GitHub Advisory Database at 6 Oct 2026, 13:38 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. ## Critical Critical, because: - CVSS score 10.0: 9.0 or more. How we decide what’s critical: ## Affected packages - `langflow` (PyPI): affected `<1.10.1`; fixed in `1.10.1` ## Machine-written summary Summary written by Claude Haiku from the source advisory. Not reviewed by a person. > Langflow versions before 1.10.1 are vulnerable. Its Python Interpreter components execute user-supplied Python in-process without effective sandboxing, so any authenticated user who can edit and run a flow can execute arbitrary code with the service's privileges and escalate to superuser. Upgrade langflow to 1.10.1 or later, preferably 1.12.3 or later for the full hardening series. Written 1 Nov 2026. ## Not analysed yet We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check. ## Severity and exploitation - 10.0 Critical, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`, from CNA (ibm) - **CISA KEV:** Not listed. - **EPSS:** 0.0082, the 57th percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days. ## Timeline - 31 Oct 2026, 14:08 UTC: First seen by agentprime - 31 Oct 2026, 14:08 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-8qpj-27x8-pwpq) ## Sources - [GitHub Advisory Database: GHSA-8qpj-27x8-pwpq](https://github.com/advisories/GHSA-8qpj-27x8-pwpq) - [OSV: GHSA-8qpj-27x8-pwpq](https://osv.dev/vulnerability/GHSA-8qpj-27x8-pwpq) - - - - - - - Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code. ## Check whether this affects you A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet. - With the agentprime MCP server (), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: - In a browser: reads your lockfile in the browser, never uploading it. - Whether it touches your code, with file and line: the Claude Code plugin, - As JSON: , or `POST https://api.agentprime.io/v1/match` with your packages () --- The web page: . Everything for agents: .