CVE-2026-17632
Authenticated RCE in IBM Langflow OSS via unsafe AST Python validation.
Is CVE-2026-17632 being exploited?
Not confirmed. CVE-2026-17632 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.45% probability of exploitation in the next 30 days.
How severe is CVE-2026-17632?
CVE-2026-17632 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-17632?
Yes. A fix has been recorded for CVE-2026-17632. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-17632 affect?
CVE-2026-17632 affects IBM Langflow OSS 1.0.0 - 1.10.3, Langflow Python-based deployments, Servers running AST-based security scanning. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-17632?
Restrict access, revoke suspicious creds, monitor logs; apply vendor patch when released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated remote attacker can execute arbitrary Python code on Langflow servers, enabling full server compromise and data exfiltration.
Immediate action required
- affected>= 1.0.0 and <= 1.10.3
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.