9.8

CVE-2020-36599: omniauth Improper Encoding or Escaping of Output

CVSS: 9.8v3.1CriticalModified
AliasesUBUNTU-CVE-2020-36599DEBIAN-CVE-2020-36599GHSA-pm55-qfxr-h247
Published 18-08-2022Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-36599 is a critical (CVSS 9.8) Improper Encoding or Escaping of Output vulnerability in omniauth. EPSS estimates a 1.16% chance of exploitation in the next 30 days, higher than 66.7% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
1.16%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 18-08-2022
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

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

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

1.16%

Chance of exploitation in the next 30 days

Percentile

67%

Versus all other CVEs

30-day change

+0.03 pp

From 1.14% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.16%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • ruby-omniauth< 2.0.4-2
Omniauth1 product
RubyGems1 product
  • omniauth< 1.9.2 | ≥ 2.0.0.pre.rc1, < 2.0.0
Ubuntu1 product
  • ruby-omniauthAll versions (No fix recorded)

4 vendors · 4 products

References

8 links