What is CVE-2021-3837?

CVE-2021-3837 is a medium-severity vulnerability in Openwhyd, classified under Improper Authorization. CVSS score: 6.1/10. Published 2022-01-03.

How severe is CVE-2021-3837?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2021-3837 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Openwhyd

CVE-2021-3837

openwhyd is vulnerable to Improper Authorization

Published 2022-01-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (42.2th percentile), scored 2026-10-05.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Openwhyd
Openwhyd Openwhyd/openwhyd — versions unspecified

Weakness classification (CWE)

CWE-285 — Improper Authorization

Public proof-of-concept exploits

References

huntr.dev/bounties/d66f90d6-1b5f-440d-8be6-cdffc9d4587e (Exploit, Patch, Third Party Advisory, Issue Tracking)
github.com/openwhyd/openwhyd/commit/102a97bb082edc831cf35d27f9e5c4f55f10ae85 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2021-3837?: CVE-2021-3837 is a medium-severity vulnerability in Openwhyd, classified under Improper Authorization. CVSS score: 6.1/10. Published 2022-01-03.
How severe is CVE-2021-3837?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2021-3837 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.