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Fencer Vulns
medium 6.8

CVE-2026-9673 json

json-2-csv vulnerable to CSV Injection via the preventCsvInjection optio

published 2026-05-28 5 mo ago modified 2026-09-10 1 mo ago also GHSA-g27c-q7cp-mhx6 , EUVD-2026-32721

cvss
6.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 5%
public exploits
0
none known

Summary

Versions of the package json-2-csv from 3.15.0 and before 5.5.11 are vulnerable to CSV Injection via the preventCsvInjection option which can be bypassed. An attacker can inject formulas into CSV files, which execute when the files are opened in spreadsheet applications.

Patch / fix

  • npm json-2-csv 5.5.11
  • n/a json-2-csv 5.5.11

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-9673 updated cvss 6.1

json-2-csv: json-2-csv: CSV Injection vulnerability allows arbitrary code execution via `preventCsvInjection` bypass.

  • Red Hat Developer Hub 1.9 rhdh/rhdh-hub-rhel9 1782761244
    fixed: vendor fix RHSA-2026:33574
  • Red Hat Developer Hub 1.10 rhdh/rhdh-hub-rhel9 1783448184
    fixed: vendor fix RHSA-2026:36754
  • Red Hat Developer Hub 1.9 rhdh/rhdh-rhel9-operator 1782767215, rhdh/rhdh-operator-bundle 1782772967 Red Hat Developer Hub 1.10 rhdh/rhdh-rhel9-operator 1783447707, rhdh/rhdh-operator-bundle 1783453583, rhdh/rhdh-must-gather-rhel9 1783447888, rhdh/rhdh-rag-content-rhel9 1783446803 Red Hat Self-service automation portal 2 ansible-automation-platform/bootc-automation-portal-rhel9
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
5 mo ago

Exploit prediction

0.17% chance of exploitation in the next 30 days, higher than 5% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 7.0 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
CNA 3.1 6.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N/E:P
CNA 4.0 5.5 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CNA 3.1 6.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
GitHub 3.1 6.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Affected packages

ecosystem package affected fixed in
npm json-2-csv
>=3.15.0, <5.5.11
5.5.11

Affected products

  • n/a json-2-csv
  • n/a org.webjars.npm:json-2-csv

Classification

Weakness
  • CWE-1236 Improper Neutralization of Formula Elements in a CSV File

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.