CVE-2026-7874 Details
Description
IBM Langflow OSS 1.0.0 through 1.10.0 Langflow could allow disclosure of all stored credentials due to the use of a weak and reversible key derivation mechanism for encryption at rest.
A vulnerability exists in IBM Langflow OSS versions 1.0.0 through 1.10.0, allowing the disclosure of all stored credentials. This issue arises from a weak and reversible key derivation mechanism used for encryption at rest, which can be exploited to decrypt API keys, database passwords, and OAuth tokens. The vulnerability is linked to the use of Python's non-cryptographic Mersenne Twister PRNG, seeded with the SECRET_KEY, to derive Fernet encryption keys. When the SECRET_KEY is shorter than 32 characters, the derived key is fully deterministic and can be reproduced by anyone with the SECRET_KEY value. Even with longer keys, the raw SECRET_KEY is used directly as the Fernet key, making decryption trivial if the secret_key file is obtained.
Users are advised to upgrade IBM Langflow OSS to version 1.10.1.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 1, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.ibm.com/support/pages/node/7278447 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-338 | Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| langflow langflow | >= 1.0.0, <= 1.10.0 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 2, 2026 | Initial Analysis | [email protected] |
| Jul 2, 2026 | CVE Modified | CISA-ADP |
| Jun 30, 2026 | New CVE Received | [email protected] |
| Jun 30, 2026 | CVE Modified | CISA-ADP |