Vulnerabilities (CVE)

Filtered by vendor Ultrajson Project
Filtered by product Ultrajson
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Total 3 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2022-31117 2 Fedoraproject, Ultrajson Project 2 Fedora, Ultrajson 2024-11-21 4.3 MEDIUM 5.9 MEDIUM
UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. In versions prior to 5.4.0 an error occurring while reallocating a buffer for string decoding can cause the buffer to get freed twice. Due to how UltraJSON uses the internal decoder, this double free is impossible to trigger from Python. This issue has been resolved in version 5.4.0 and all users should upgrade to UltraJSON 5.4.0. There are no known workarounds for this issue.
CVE-2022-31116 2 Fedoraproject, Ultrajson Project 2 Fedora, Ultrajson 2024-11-21 5.0 MEDIUM 7.5 HIGH
UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Affected versions were found to improperly decode certain characters. JSON strings that contain escaped surrogate characters not part of a proper surrogate pair were decoded incorrectly. Besides corrupting strings, this allowed for potential key confusion and value overwriting in dictionaries. All users parsing JSON from untrusted sources are vulnerable. From version 5.4.0, UltraJSON decodes lone surrog ...

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CVE-2021-45958 3 Debian, Fedoraproject, Ultrajson Project 3 Debian Linux, Fedora, Ultrajson 2024-11-21 4.3 MEDIUM 5.5 MEDIUM
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.