Quick answers
- Is CVE-2026-97677 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-97677 being exploited in the wild.
- How severe is CVE-2026-97677?
- High severity, with a CVSS score of 8.1, published 8 November 2026.
- Which products and versions are affected?
- IBM Langflow OSS 1.0.0 through 1.12.2.
- Is there a fix for CVE-2026-97677?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-97677 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-97677?
- Check whether you run IBM Langflow OSS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
CVE-2026-97677 is a path traversal vulnerability (CWE-22) that allows authenticated flow authors to read and write arbitrary files accessible by the Langflow service account by bypassing local file access isolation controls. An attacker can craft malicious index files or flow definitions to traverse directory boundaries and access files outside intended directories, including sensitive data like secrets, database files, and configuration. The vulnerability requires authentication but no special privileges, with network access as the attack vector.
Affected products
- IBM Langflow OSS 1.0.0 through 1.12.2
Timeline
- 2026-11-08: disclosed