RCE in Langroid
CVE-2026-25481
Langroid is a framework for building large-language-model-powered applications. Prior to version 0.59.32, there is a bypass to the fix for CVE-2025-46724. TableChatAgent can call pandas_eval tool to evaluate the expression. There is a WAF in langroid/utils/pandas_utils.py introduced to block code injection CVE-2025-46724. However it can be bypassed due to _literal_ok() returning False instead of raising UnsafeCommandError on invalid input, combined with unrestricted access to dangerous dunder attributes (__init__, __globals__, __builtins__). This allows chaining whitelisted DataFrame methods to leak the eval builtin and execute arbitrary code. This issue has been patched in version 0.59.32.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (52.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.007 · change: +0.001
Affected products
- Langroid — versions < 0.59.32
Weakness classification (CWE)
References
- github.com/langroid/langroid/security/advisories/GHSA-x34r-63hx-w57f (Exploit, Vendor Advisory)
- github.com/langroid/langroid/security/advisories/GHSA-jqq5-wc57-f8hj (Vendor Advisory)
- github.com/langroid/langroid/commit/30abbc1a854dee22fbd2f8b2f575dfdabdb603ea (Patch)
Frequently asked questions
- What is CVE-2026-25481?
- CVE-2026-25481 is a critical-severity vulnerability in Langroid, classified under Code Injection. CVSS score: 9.6/10. Published 2026-02-04.
- How severe is CVE-2026-25481?
- Critical severity. CVSS v3 base score is 9.6 out of 10.