CVE-2026-6878

MEDIUM

ByteDance verl grader.py math_equal sandbox

Title source: cna

Description

A vulnerability was identified in ByteDance verl up to 0.7.0. Affected is the function math_equal of the file prime_math/grader.py. The manipulation leads to 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 might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Scores

CVSS v3 5.6
EPSS 0.0004
EPSS Percentile 11.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Details

CWE
CWE-264 CWE-265
Status published
Products (7)
ByteDance/verl 0.1
ByteDance/verl 0.2
ByteDance/verl 0.3
ByteDance/verl 0.4
ByteDance/verl 0.5
ByteDance/verl 0.6
ByteDance/verl 0.7.0
Published Apr 23, 2026
Tracked Since Apr 23, 2026