CVE-2020-10770

mediumpriority · attend · 55EPSS 0.697 · 99 %ileexploit · PoCEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

3 exploits · PoC

Likely / severe?

69.7% (99th) EPSS

CVSS 5 · medium

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-24

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.

cvss

Technical severity, 0–10. One row per scoring source.

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05mediumAV:N/AC:L/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nsecondary · OSV

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:Hsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-918USprimaryCWE-601USCWE-918US

exploits (3)

Public proof-of-concept and weaponised exploit code.

EDB-50405Keycloak 12.0.1 - 'request_uri ' Blind Server-Side Request Forgery (SSRF) (Unauthenticated)PoC · exploit_db
0xlyvio/CVE-2020-10770-keycloak-exploit-pocKeycloak Blind SSRF POCPoC · poc_in_github
ColdFusionX/Keycloak-12.0.1-CVE-2020-10770Keycloak 12.0.1 - 'request_uri ' Blind Server-Side Request Forgery (SSRF) (Unauthenticated) PoC · poc_in_github

affected products (3)

Products and version ranges known to be affected.

n/a KeyCloak≤ keycloak 13.0.0enisa_euvdEU
redhat keycloak< 12.0.2nvdUScpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*
Maven org.keycloak:keycloak-core< 13.0.0osvUSpkg:maven/org.keycloak/keycloak-core

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-jh7q-5mwf-qvhwKeycloak vulnerable to Server-Side Request Forgery2022-05-24ghsa · osvUS
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.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2020-12-15modified 2026-06-17

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+4159 more

references (15)

External citations — patches, advisories, analysis.

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