CVE-2025-4742: XU-YIJIE grpo-flat grpo_vanilla.py main deserialization

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-05-16 · updated 2026-06-17
Weakness: CWE-20

Description

A vulnerability classified as problematic has been found in XU-YIJIE grpo-flat up to 9024b43f091e2eb9bac65802b120c0b35f9ba856. Affected is the function main of the file grpo_vanilla.py. The manipulation leads to deserialization. Local access is required to approach this attack. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available.

Affected products

XU-YIJIE grpo-flat: 9024b43f091e2eb9bac65802b120c0b35f9ba856

References

https://github.com/XU-YIJIE/grpo-flat/issues/3
https://vuldb.com/?ctiid.309042
https://vuldb.com/?id.309042
https://vuldb.com/?submit.570923

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