Detections
Analytics

SCA: security update for ujson (GHSA-c8rr-9gxc-jprv)

high Tenable Cloud Security Plugin ID 438936

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Versions
 5.10 through 5.11.0 are vulnerable to buffer overflow or infinite loop through large indent handling.
 ujson.dumps() crashes the Python interpreter (segmentation fault) when the product of the indent parameter
 and the nested depth of the input exceeds INT32_MAX. It can also get stuck in an infinite loop if the
 indent is a large negative number. Both are caused by an integer overflow/underflow whilst calculating how
 much memory to reserve for indentation. And both can be used to achieve denial of service. To be
 vulnerable, a service must call ujson.dump()/ujson.dumps()/ujson.encode() whilst giving untrusted users
 control over the indent parameter and not restrict that indentation to reasonably small non-negative
 values. A service may also be vulnerable to the infinite loop if it uses a fixed negative indent. An
 underflow always occurs for any negative indent when the input data is at least one level nested but, for
 small negative indents, the underflow is usually accidentally rectified by another overflow. This issue
 has been fixed in version 5.12.0. (CVE-2026-32875)

Solution

Update the ujson library and its related packages to version 5.12.0 or later.

See Also

https://github.com/advisories/GHSA-c8rr-9gxc-jprv

Plugin Details

Severity: High

ID: 438936

Version: Revision 1.8

Type: Local

Family: SCA Checks

Published: 3/18/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.72

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-32875

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/18/2026

Vulnerability Publication Date: 3/18/2026

Reference Information

CVE: CVE-2026-32875