CVE-2020-10770 (GCVE-0-2020-10770)

Vulnerability from cvelistv5 – Published: 2020-12-15 00:00 – Updated: 2024-08-04 11:14
VLAI Shadowserver
Summary
A flaw was found in Keycloak before 13.0.0, where it is possible to force the server to call out an unverified URL using the OIDC parameter request_uri. This flaw allows an attacker to use this parameter to execute a Server-side request forgery (SSRF) attack.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
n/a keycloak Affected: keycloak 13.0.0
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 3e52897a-2f22-47d9-ba70-9368ca880c5e

Vulnerability ID: CVE-2020-10770

Status: Confirmed

Status Updated: 2026-09-01 00:00 UTC

Exploited: Yes

Characteristics
Severity: 53.0
Timestamps
First Seen: 2023-10-23
Asserted: 2023-10-23
Last Seen: 2026-09-01
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: Keycloak / Keycloak | Class: other-software | Severity: Medium (CVSS 5.3) | IoT: no | In CISA KEV: no | Honeypot connections on 2026-09-01: 1
Evidence

Type: Honeypot

Signal: In The Wild Attempts

Confidence: 70%

Source: shadowserver

Details
1D 1
Iot no
Feed Shadowserver Foundation honeypot/exploited-vulnerabilities
Type http-scan
Class other-software
7D Avg 0
Vendor Keycloak
30D Avg 0
90D Avg 0
Product Keycloak
Cisa Kev no
Connections 1
Observation Date 2026-09-01
Vulnerability Class CVSS
Vulnerability Score 5.3
Vulnerability Severity Medium
References
Created: 2026-07-01 05:54 UTC | Updated: 2026-09-03 01:02 UTC
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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