CVE-2023-2968 json
Undefined variable usage in npm package "proxy" leads to remote denial of service
published 2023-05-30 3 y ago modified 2026-10-08 31 d ago also GHSA-mj6p-3pc9-wf5m , EUVD-2023-1582
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 74%
- public exploits
- 0
- none known
Summary
A remote attacker can trigger a denial of service in the socket.remoteAddress variable, by sending a crafted HTTP request. Usage of the undefined variable raises a TypeError exception.
Patch / fix
- npm proxy 2.1.1
- proxy_project proxy 2.1.1
- github.com/TooTallNate/proxy-agents@25e0c93 commit
- github.com/TooTallNate/proxy-agents#178 pull request
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 21 mo ago
Exploit prediction
1.48% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- research.jfrog.com https://research.jfrog.com/vulnerabilities/undefined-variable-usage-in-proxy-leads-to-remote-denial-of-service-xray-520917 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | proxy | >=2.0.0, <2.1.1 |
2.1.1 |
Classification
- Weakness
-
- CWE-232 Improper Handling of Undefined Values
References
-
github.com
/TooTallNate/proxy-agents/pull/178
web
-
github.com
/TooTallNate/proxy-agents/commit/25e0c931390eb8f41c5ceaca72820de9198ece39
web
-
research.jfrog.com
/vulnerabilities/undefined-variable-usage-in-proxy-leads-to-remote-denial-of-service-xray-520917
web, exploit, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2023-2968
advisory
-
github.com
/TooTallNate/proxy-agents
package
Sources
- CVE List CVE-2023-2968
- GitHub Advisory GHSA-mj6p-3pc9-wf5m
- NVD CVE-2023-2968
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