TI-2023-23372 Aliases CVE-2023-43646 GHSA-4q6p-r6v2-jvc5

Inefficient Regular Expression Complexity in get-func-name

HIGH 76CWE-1333Published 2023-09-26 · Updated 2024-09-24

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Partial Red Hat: 2 fixed, 4 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-1333.

Summary

get-func-name is a module to retrieve a function's name securely and consistently both in NodeJS and the browser. Versions prior to 2.0.1 are subject to a regular expression denial of service (redos) vulnerability which may lead to a denial of service when parsing malicious input. This vulnerability can be exploited when there is an imbalance in parentheses, which results in excessive backtracking and subsequently increases the CPU load and processing time significantly. This vulnerability can be triggered using the following input: '\t'.repeat(54773) + '\t/function/i'. This issue has been addressed in commit `f934b228b` which has been included in releases from 2.0.1. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.01383 72nd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Partial get-func-name (chaijs): 2.0.1get-func-name (npm): 2.0.1Red Hat: 2 advisoriesRed Hat: 2 fixed, 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
chaijs	get-func-name	before 2.0.1	2.0.1	Patch available	CNA
—	get-func-name (npm)	before 2.0.1	2.0.1	Patch available	GHSA-4q6p-r6v2-jvc5

get-func-name Vendorchaijs Affected before 2.0.1 Fixed in 2.0.1 Patch available CNA
get-func-name (npm) Vendor— Affected before 2.0.1 Fixed in 2.0.1 Patch available GHSA-4q6p-r6v2-jvc5

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:chaijs:get-func-name::::::node.js::*	before 2.0.1	Vulnerable	chaijs

cpe:2.3:a:chaijs:get-func-name:*:*:*:*:*:node.js:*:* Versions before 2.0.1 Vulnerable ·chaijs

Remediation

Fix · CNA get-func-name (chaijs) Fixed in 2.0.1
Fix · GHSA-4q6p-r6v2-jvc5 get-func-name (npm) Fixed in 2.0.1 Advisory →

Red Hat 2 advisories

RHSA-2024:4591 Released 2024-07-17 · Red Hat rating Important
Red Hat OpenShift Data Foundation 4.16.0 security, enhancement & bug fix update
- RHODF 4.16 for RHEL 9 odf4/cephcsi-rhel9, odf4/mcg-core-rhel9, odf4/mcg-operator-bundle +8
RHSA-2024:1383 Released 2024-03-19 · Red Hat rating Important
Red Hat OpenShift Data Foundation 4.15.0 security, enhancement, & bug fix update
- RHODF 4.15 for RHEL 9 odf4/cephcsi-rhel9, odf4/mcg-core-rhel9, odf4/mcg-operator-bundle +23

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
OpenShift Service Mesh 2	Affected	No fix yet
Red Hat JBoss Data Grid 7	Affected	No fix planned: Out of support scope
Red Hat OpenShift Container Platform 4	Affected	No fix planned: Will not fix
Red Hat OpenShift Dev Spaces	Affected	No fix yet
RHODF 4.15 for RHEL 9	Fixed	RHSA-2024:1383
RHODF 4.16 for RHEL 9	Fixed	RHSA-2024:4591

Not affected: 4 products

RHODF 4.15 for RHEL 9
RHODF 4.16 for RHEL 9
Red Hat Enterprise Linux 8
Red Hat JBoss Enterprise Application Platform 8

Timeline

2026-10-02 Threatist record created from CVE-2023-43646
2026-10-03 Alias added: GHSA-4q6p-r6v2-jvc5

References

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences