CVE-2026-6878

ByteDance verl grader.py math_equal sandbox

MEDIUM
5.6
CVSS Score
Published: April 23, 2026 at 12:00 AM UTC
Updated: October 26, 2026 at 09:10 PM UTC
1 product affected across 1 vendorVerl

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Severity
MEDIUM5.6
Exploit prediction
EPSS 0.3%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/359040
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/359040/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/795257

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.6MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-265CWE-264

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