TI-2021-19291 Aliases CVE-2021-43298 GHSA-cfh2-3f5r-4vf9

Missing brute-force protection in Embedthis goahead

MEDIUM 46CWE-208Published 2022-01-25 · Updated 2024-08-04

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-208 and CWE-307.

Summary

The code that performs password matching when using 'Basic' HTTP authentication does not use a constant-time memcmp and has no rate-limiting. This means that an unauthenticated network attacker can brute-force the HTTP basic password, byte-by-byte, by recording the webserver's response time until the unauthorized (401) response.

Why it matters now

EPSS 0.02256 83rd percentileScored 2026-11-07

Fix Fixed goahead (embedthis): 5.1.4

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Embedthis	goahead	before 5.1.4	5.1.4	Patch available	CNA

goahead VendorEmbedthis Affected before 5.1.4 Fixed in 5.1.4 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:embedthis:goahead::::::::	before 5.1.4	Vulnerable	Embedthis

cpe:2.3:a:embedthis:goahead:*:*:*:*:*:*:*:* Versions before 5.1.4 Vulnerable ·Embedthis

Remediation

Fix · CNA goahead (embedthis) Fixed in 5.1.4

Timeline

2026-10-02 Threatist record created from CVE-2021-43298
2026-10-03 Alias added: GHSA-cfh2-3f5r-4vf9

References

Advisory 1

https://github.com/embedthis/goahead/issues/304

TI-2017-12833 Embedthis GoAhead before 3.6.5 allows remote code execution if CGI is enabled and a CGI… KEVCVSS 3.1HIGH 8.1
TI-2019-03557 Use after free in EmbedThis CVSS 3.1CRITICAL 9.8
TI-2021-18771 An issue was discovered in GoAhead 4.x and 5.x before 5.1.5. CVSS 3.1CRITICAL 9.8
TI-2017-03674 A vulnerability in a custom-built GoAhead web server used on Foscam, Vstarcam, and… CVSS 3.0CRITICAL 9.8
TI-2019-03558 Infinite loop in EmbedThis CVSS 3.1HIGH 7.5
TI-2014-07892 EmbedThis GoAhead 3.0.0 through 3.4.1 does not properly handle path segments starting… CVSS 2.0HIGH 7.5

See all 16 →

Sources

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