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CVE-2026-54911

Опубликовано: 22 июн. 2026
Источник: nvd
CVSS3: 6.5
EPSS Низкий

Описание

UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Prior to 5.13.0, ujson.dumps() (or ujson.dump() or ujson.encode()) have a reject_bytes=False option. When set, they may accept malformed or truncated UTF-8 byte sequences, silently rewriting them into different Unicode characters instead of rejecting them. This leads to input validation bypass and data integrity issues. This vulnerability is fixed in 5.13.0.

Уязвимые конфигурации

Конфигурация 1
cpe:2.3:a:ultrajson_project:ultrajson:*:*:*:*:*:python:*:*
Версия до 5.13.0 (исключая)

EPSS

Процентиль: 19%
0.00272
Низкий

6.5 Medium

CVSS3

Дефекты

CWE-20

Связанные уязвимости

CVSS3: 6.5
ubuntu
около 1 месяца назад

UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Prior to 5.13.0, ujson.dumps() (or ujson.dump() or ujson.encode()) have a reject_bytes=False option. When set, they may accept malformed or truncated UTF-8 byte sequences, silently rewriting them into different Unicode characters instead of rejecting them. This leads to input validation bypass and data integrity issues. This vulnerability is fixed in 5.13.0.

CVSS3: 5.3
redhat
около 1 месяца назад

UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Prior to 5.13.0, ujson.dumps() (or ujson.dump() or ujson.encode()) have a reject_bytes=False option. When set, they may accept malformed or truncated UTF-8 byte sequences, silently rewriting them into different Unicode characters instead of rejecting them. This leads to input validation bypass and data integrity issues. This vulnerability is fixed in 5.13.0.

CVSS3: 6.5
debian
около 1 месяца назад

UltraJSON is a fast JSON encoder and decoder written in pure C with bi ...

CVSS3: 6.5
github
около 2 месяцев назад

UltraJSON: Malformed/Truncated UTF-8 Accepted and Silently Rewritten in ujson.dumps()

EPSS

Процентиль: 19%
0.00272
Низкий

6.5 Medium

CVSS3

Дефекты

CWE-20