CVE-2024-38999: requirejs · Prototype Pollution
Affects requirejsSource CVE Database V5
Not known to be exploited · CVSS 10.0 Critical.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.8% chance of exploitation in 30 days – higher than 57% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 1 Jul 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
npmrequirejspkg:npm/requirejsOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until an official patch is released, organizations should implement the following specific mitigations: 1) Audit and restrict inputs to the s.contexts._.configure function to prevent untrusted data from influencing prototype properties. 2) Employ runtime application self-protection (RASP) or JavaScript security tools that can detect and block prototype pollution attempts. 3) Use Content Security Policy (CSP) headers to limit the execution of unauthorized scripts. 4) Isolate or sandbox components using requirejs to minimize the impact of potential exploitation. 5) Monitor application logs and network traffic for anomalous behavior indicative of prototype pollution or code injection attempts. 6) Plan and prioritize upgrading to patched versions of requirejs once available. 7) Conduct thorough code reviews and penetration testing focused on prototype pollution vectors. 8) Educate developers about secure coding practices related to prototype manipulation in JavaScript. These targeted actions go beyond generic advice and address the specific exploitation mechanism of this vulnerability.
Description
jrburke requirejs v2.3.6 was discovered to contain a prototype pollution via the function s.contexts._.configure. This vulnerability allows attackers to execute arbitrary code or cause a Denial of Service (DoS) via injecting arbitrary properties.