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VulnerabilityPublished

CVE-2024-45435: chartist · Prototype Pollution

Affects chartistSource CVE Database V5

0

Not known to be exploited · CVSS 9.8 Critical.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 49% 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:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 Aug 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
npmchartistpkg:npm/chartistOther threatsAffected
  • >=1.0.0 <=1.3.0
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

  1. Monitor the official Chartist repository and security advisories for patches addressing CVE-2024-45435 and apply updates immediately upon release.
  2. Until patches are available, implement strict input validation and sanitization to prevent untrusted data from reaching the extend function or similar prototype-modifying code paths.
  3. Use JavaScript security libraries or frameworks that provide protections against prototype pollution.
  4. Employ Content Security Policy (CSP) headers to reduce the risk of injected script execution.
  5. Conduct code audits focusing on object extension and prototype manipulation patterns within the application.
  6. Isolate or sandbox components that use Chartist to limit the blast radius of potential exploitation.
  7. Monitor application logs and network traffic for unusual behavior indicative of prototype pollution attacks.
  8. Educate development teams about prototype pollution risks and secure coding practices related to object manipulation in JavaScript.

Description

Chartist 1.x through 1.3.0 allows Prototype Pollution via the extend function.

References

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