TI-2020-18823 Aliases CVE-2020-36629 GHSA-p8j8-wxvp-h695

SimbCo httpster server.coffee fs.realpathSync path traversal

HIGH 66CWE-22Published 2022-12-25 · Updated 2025-04-14

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Information disclosure
Confidentiality · integrity · availability: High · None · None
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-22 and the CVSS impact.

Summary

A vulnerability classified as critical was found in SimbCo httpster. This vulnerability affects the function fs.realpathSync of the file src/server.coffee. The manipulation leads to path traversal. The exploit has been disclosed to the public and may be used. The name of the patch is d3055b3e30b40b65d30c5a06d6e053dffa7f35d0. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-216748.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00903 59th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA and NVD

Fix Fixed httpster (npm): 1.1.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
SimbCo	httpster	all versions	—	No fix listed	CNA
—	httpster (npm)	before 1.1.0	1.1.0	Patch available	GHSA-p8j8-wxvp-h695

httpster VendorSimbCo Affected all versions Fixed in — No fix listed CNA
httpster (npm) Vendor— Affected before 1.1.0 Fixed in 1.1.0 Patch available GHSA-p8j8-wxvp-h695

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:httpster_project:httpster::::::node.js::*	before 2020-11-19	Vulnerable	Httpster Project

cpe:2.3:a:httpster_project:httpster:*:*:*:*:*:node.js:*:* Versions before 2020-11-19 Vulnerable ·Httpster Project

Remediation

Fix · GHSA-p8j8-wxvp-h695 httpster (npm) Fixed in 1.1.0 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2020-36629
2026-10-03 Alias added: GHSA-p8j8-wxvp-h695

References

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences