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🛡️ CVE-2026-6878 — verl

🟡 CVSS 5.6 — Medium ✅ No Known Exploit CWE-264 NVD
5.6
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

verl's math_equal() Vulnerable to Arbitrary Code Execution via Unsafe eval()

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity low, availability low.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: Low — limited, and the attacker does not choose what is affected.
  • Integrity impact: Low — limited, and the attacker does not choose what is affected.
  • Availability impact: Low — limited, and the attacker does not choose what is affected.

Weakness class

CVE-2026-6878 is classified as CWE-264: Permissions, Privileges, and Access Controls. Permissions or privilege boundaries are set or enforced incorrectly, letting an actor act beyond their intended level.

Affected software

CVE-2026-6878 is recorded against 2 packages.

  • unknown
  • verl

Timeline and source

Published on 23 April 2026 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com
vuldb.com
vuldb.com
vuldb.com

Other advisories for this package

unknown has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-264: Permissions, Privileges, and Access Controls) in other software:

Details

Severity MEDIUM
CVSS Score 5.6
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
CWE CWE-264
Public Exploit ✅ No
Source NVD
Published 2026-04-23
Updated 2026-08-20
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown — —
verl — —

Similar Threats

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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