What is CVE-2020-36599?

CVE-2020-36599 is a critical-severity vulnerability in Omniauth, classified under Improper Encoding or Escaping of Output. CVSS score: 9.8/10. Published 2022-08-18.

How severe is CVE-2020-36599?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2020-36599 known to be exploited?

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

Vulnerability in Omniauth

CVE-2020-36599

lib/omniauth/failure_endpoint.rb in OmniAuth before 1.9.2 (and before 2.0) does not escape the message_key value.

EPSS: 0.011 (60.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Omniauth — versions 2.0.0
N/a — versions n/a

Weakness classification (CWE)

CWE-116 — Improper Encoding or Escaping of Output

Public proof-of-concept exploits

References

cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Product, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-36599?: CVE-2020-36599 is a critical-severity vulnerability in Omniauth, classified under Improper Encoding or Escaping of Output. CVSS score: 9.8/10. Published 2022-08-18.
How severe is CVE-2020-36599?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-36599 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.