Quick answers
- Is CVE-2026-7871 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-7871 being exploited in the wild.
- How severe is CVE-2026-7871?
- Critical severity, with a CVSS score of 9.8, published 30 June 2026.
- Which products and versions are affected?
- IBM Langflow OSS 1.0.0 through 1.10.0.
- Is there a fix for CVE-2026-7871?
- 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-2026-7871 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-7871?
- 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
A deserialization vulnerability (CWE-502) exists in the Redis cache backend of IBM Langflow OSS versions 1.0.0 through 1.10.0. The application utilizes the 'dill.loads()' function to deserialize cached values retrieved from Redis without performing integrity verification. An attacker with network access to the Redis instance can inject malicious serialized payloads into the cache; these payloads are subsequently executed by application workers when the cached data is read. The issue is resolved in version 1.10.1 by implementing HMAC-SHA256 signature verification for all cached values to ensure only authorized payloads are processed.
Affected products
- IBM Langflow OSS 1.0.0 through 1.10.0
Timeline
- 2026-06-29: advisory: Initial publication by IBM
- 2026-06-30: disclosed: CVE published to NVD dataset