GitHub Advisoryadvisory · PyPI
GHSA-h57c-v2v3-5v3v verl's math_equal() Vulnerable to Arbitrary Code Execution via Unsafe eval()
LOW
Official page ↗
- Aliases
- CVE-2026-6878
- Ecosystem
- PyPI
- Packages
- verl
- Severity
- Low
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
- Weaknesses
- CWE-95
- Reviewed
- 2026-04-30
Affected packages
• PyPI verl: <= 0.7.1 (no fix yet)
Description
A vulnerability was identified in ByteDance verl up to 0.7.1. Affected is the function math_equal of the file prime_math/grader.py. The manipulation leads to a sandbox issue. It is possible to initiate the attack remotely. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit is publicly available and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Related
Alias · CVE (1)
- CVE-2026-6878 A vulnerability was identified in ByteDance verl up to 0.7.0. vulnerability
Weakness · CWE (1)
- CWE-95 Improper Neutralization of Directives in Dynamically Evaluated Code weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-6878 advisory
- https://github.com/verl-project/verl package
- https://github.com/verl-project/verl/blob/v0.7.1/verl/utils/reward_score/prime_math/grader.py web
- https://github.com/zast-ai/vulnerability-reports/blob/main/bytedance/verl_rce.md web
- https://vuldb.com/submit/795257 web
- https://vuldb.com/vuln/359040 web
- https://vuldb.com/vuln/359040/cti web