VDB-433164 · Submit #1040563 · CVE-2026-124992

nushell up to 0.116.1 Data Conversion ser.rs escape_bytes control sequence

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.2	$0-$5k	0.00+

Summaryinfo

A vulnerability was found in nushell up to 0.116.1 and classified as problematic. The affected element is the function escape_bytes of the file crates/nu-json/src/ser.rs of the component Data Conversion Handler. The manipulation results in control sequence. This vulnerability is cataloged as CVE-2026-124992. The attack must be initiated from a local position. Furthermore, there is an exploit available. The pull request to fix this issue awaits acceptance.

Detailsinfo

A vulnerability, which was classified as problematic, was found in nushell up to 0.116.1. Affected is the function escape_bytes of the file crates/nu-json/src/ser.rs of the component Data Conversion Handler. The manipulation with an unknown input leads to a control sequence vulnerability. CWE is classifying the issue as CWE-150. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as escape, meta, or control character sequences when they are sent to a downstream component. This is going to have an impact on integrity.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-124992. The exploitability is told to be easy. The attack needs to be approached locally. Technical details and a exploit are known.

It is declared as proof-of-concept. The pull request to fix this issue awaits acceptance.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

nushell

Version

Website

Product: https://github.com/nushell/nushell/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.2

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Control sequence
CWE: CWE-150 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Proof-of-Concept
Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

11/09/2026 Advisory disclosed
11/09/2026 +0 days VulDB entry created
11/09/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 19197
Status: Confirmed
Confirmation: 🔒

CNA: VulDB
CVE: CVE-2026-124992 (🔒)

GCVE (CVE): GCVE-0-2026-124992
GCVE (VulDB): GCVE-100-433164
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 11/09/2026 16:36
Changes: 11/09/2026 16:36 (56)
Complete: 🔍
Submitter: carfeii
Cache ID: 216::103

Submitinfo

Accepted

Submit #1040563: https://github.com/nushell/ nushell 0.114.1 Improper Encoding or Escaping of Output (by carfeii)