VYPR
Medium severity5.5NVD Advisory· Published Jan 1, 2022· Updated Jun 17, 2026

CVE-2021-45958

CVE-2021-45958

Description

UltraJSON (aka ujson) through 5.1.0 has a stack-based buffer overflow in Buffer_AppendIndentUnchecked (called from encode). Exploitation can, for example, use a large amount of indentation.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
ujsonPyPI
>= 1.34, < 5.2.05.2.0

Affected products

12

Patches

Vulnerability mechanics

References

18

News mentions

0

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