What is CVE-2026-6878?

CVE-2026-6878 is a medium-severity vulnerability in Bytedance Verl, classified under CWE-264. CVSS score: 5.6/10. Published 2026-04-23.

How severe is CVE-2026-6878?

Medium severity. CVSS v3 base score is 5.6 out of 10.

Vulnerability in Bytedance Verl

CVE-2026-6878

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…

EPSS: 0.001 (17.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L.

Affected products

Bytedance Verl — versions 0.1, 0.2, 0.3

Weakness classification (CWE)

References

VDB-359040 | ByteDance verl grader.py math_equal sandbox (technical-description, vdb-entry)
VDB-359040 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, permissions-required)
Submit #795257 | Bytedance verl <=0.7.0 Arbitrary Code Execution (third-party-advisory)
cna@vuldb.com (exploit)

Frequently asked questions

What is CVE-2026-6878?: CVE-2026-6878 is a medium-severity vulnerability in Bytedance Verl, classified under CWE-264. CVSS score: 5.6/10. Published 2026-04-23.
How severe is CVE-2026-6878?: Medium severity. CVSS v3 base score is 5.6 out of 10.