Faktory Web Dashboard can lead to denial of service(DOS) via malicious user input

published 2023-09-20 3 y ago modified 2026-09-10 1 mo ago also GHSA-x4hh-vjm7-g2jv , GO-2023-2067 , EUVD-2023-2611

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits: 0; none known

Faktory is a language-agnostic persistent background job server. Prior to version 1.8.0, the Faktory web dashboard can suffer from denial of service by a crafted malicious url query param `days`. The vulnerability is related to how the backend reads the `days` URL query parameter in the Faktory web dashboard. The value is used directly without any checks to create a string slice. If a very large value is provided, the backend server ends up using a significant amount of memory and causing it to crash. Version 1.8.0 fixes this issue.

Patch / fix

fixed in 2

go github.com/contribsys/faktory 1.8.0
contribsys faktory 1.8.0

CISA SSVC

Exploitation: Proof of concept is public
Automatable: yes
Technical impact: partial
Assessed: 2 y ago (2024-09-24)

Exploit prediction

0.92% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/contribsys/faktory/security/advisories/GHSA-x4hh-vjm7-g2jv 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
go	github.com/contribsys/faktory	<1.8.0	1.8.0

Affected products

contribsys faktory

Classification

Weakness

CWE-770 Allocation of Resources Without Limits or Throttling
CWE-789 Memory Allocation with Excessive Size Value

References

github.com /contribsys/faktory/security/advisories/GHSA-x4hh-vjm7-g2jv
web, exploit, vendor-advisory, advisory
nvd.nist.gov /vuln/detail/CVE-2023-37279
advisory
github.com /contribsys/faktory
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary