CVE-2023-30588 [Medium] | Denial of Service in Node.js

When an invalid public key is used to create an x509 certificate using the crypto.X509Certificate() API a non-expect termination occurs making it susceptible to DoS attacks when the attacker could force interruptions of application processing, as the process terminates when accessing public key info of provided certificates from user code. The current context of the users will be gone, and that will cause a DoS scenario. This vulnerability affects all active Node.js versions v16, v18, and, v20.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-21	0.96%	1.16%	+0.19%
2	2026-06-15	0.02%	0.96%	+0.94%
3	2025-11-21	—	0.02%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-21

0.96%

1.16%

+0.19%

2026-06-15

0.02%

0.96%

+0.94%

2025-11-21

—

0.02%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
5.3	3.1	MEDIUM	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:N) Doesn’t really leak secrets in a meaningful way. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:L) Might cause slowdowns, glitches, or partial disruption—not a full brick.	3.9	1.4	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

5.3

3.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Click to expand

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N): Doesn’t really leak secrets in a meaningful way.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:L): Might cause slowdowns, glitches, or partial disruption—not a full brick.

3.9

1.4

[email protected]

OS Trackers for CVE-2023-30588

vendor	priority	summary	link
`alpine`	—	CVE-2023-30588: 1 source package rows (nodejs); 32 state rows across 5 repos (3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 0, open 32.	https://security.alpinelinux.org/vuln/CVE-2023-30588
`debian`	unimportant	CVE-2023-30588 unimportant priority: Debian including 1 source packages (nodejs), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2023-30588
`gentoo`	low	CVE-2023-30588: 1 GLSA(s) (202405-29), 1 atom(s) (net-libs/nodejs); latest impact low.	https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2023-30588
`redhat`	medium	—	https://access.redhat.com/security/cve/CVE-2023-30588
`suse`	medium	CVE-2023-30588 severity moderate: SUSE including 48 source package names (16-18.3:nodejs16-16.20.1-150400.3.21.1, 16-18.3:npm16-16.20.1-150400.3.21.1, …), 150 product×package rows across 22 product lines (Container bci/nodejs, SUSE Enterprise Storage 7, … (22 product lines)): Fixed 109, Known Not Affected 41.	https://www.suse.com/security/cve/CVE-2023-30588/
`ubuntu`	medium	CVE-2023-30588 medium priority: Ubuntu including 1 source packages (nodejs), 10 status rows across 10 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, trusty, upstream, xenial): not-affected 6, ignored 2, needs-triage 1, released 1.	https://ubuntu.com/security/CVE-2023-30588

Affected software / configurations for CVE-2023-30588

Vendor	Product	Version	Raw CPE
nodejs	node.js	>= 16.0.0, < 16.20.1	cpe:2.3:a:nodejs:node.js::::::::
nodejs	node.js	>= 18.0.0, < 18.16.1	cpe:2.3:a:nodejs:node.js::::::::
nodejs	node.js	>= 20.0.0, < 20.3.1	cpe:2.3:a:nodejs:node.js::::::::

References for CVE-2023-30588

URL	Tags
https://nodejs.org/en/blog/vulnerability/june-2023-security-releases	Vendor Advisory
https://security.netapp.com/advisory/ntap-20240621-0006/
https://security.netapp.com/advisory/ntap-20241101-0011/

URL

CVE-2023-30588

Exploit prediction scoring system (EPSS) score for CVE-2023-30588

Common vulnerability scoring system (CVSS) metrics for CVE-2023-30588

Weakness enumeration for CVE-2023-30588

OS Trackers for CVE-2023-30588

Affected software / configurations for CVE-2023-30588

References for CVE-2023-30588