CVE-2023-26144

Exp

Versions of the package graphql from 16.3.0 and before 16.8.1 are vulnerable to Denial of Service (DoS) due to insufficient checks in the OverlappingFieldsCanBeMergedRule.ts file when parsing large queries. This vulnerability allows an attacker to degrade system performance. **Note:** It was not proven that this vulnerability can crash the process.

Published: 2023-09-20 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-26144 is rated High Exploit Risk (66/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.14%). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2023-26144

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2023-26144

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-26 1.88% 2.14% +0.26%
2 2026-05-22 2.14% 1.88% -0.26%
3 2026-05-03 — 2.14% —

Full EPSS history (41 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-26144

CVSS metrics for this CVE.

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]
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]

Weakness enumeration for CVE-2023-26144

GitHub Security Advisory for CVE-2023-26144

GHSA-9pv7-vfvm-6vr7 · Severity: medium · Ecosystem: npm — graphql Uncontrolled Resource Consumption vulnerability

OS Trackers for CVE-2023-26144

vendor priority summary link
debian not yet assigned CVE-2023-26144 not yet assigned priority: Debian including 1 source packages (node-graphql), 4 status rows across 4 suites (bookworm, forky, sid, trixie): resolved 3, open 1. https://security-tracker.debian.org/tracker/CVE-2023-26144
redhat medium — https://access.redhat.com/security/cve/CVE-2023-26144
ubuntu medium CVE-2023-26144 medium priority: Ubuntu including 1 source packages (node-graphql), 12 status rows across 12 suites (bionic, focal, jammy, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): ignored 7, needs-triage 4, DNE 1. https://ubuntu.com/security/CVE-2023-26144

Affected software / configurations for CVE-2023-26144

Vendor Product Version Raw CPE
graphql graphql >= 16.3.0, < 16.8.1 cpe:2.3:a:graphql:graphql:*:*:*:*:*:node.js:*:*
graphql graphql 17.0.0 cpe:2.3:a:graphql:graphql:17.0.0:alpha1:*:*:*:node.js:*:*
graphql graphql 17.0.0 cpe:2.3:a:graphql:graphql:17.0.0:alpha2:*:*:*:node.js:*:*

References for CVE-2023-26144

cvelogic Threat Intelligence