CVE-2020-1761Network attack vector

Access-token theft via browser local storage

Published May 27, 2021 · Updated Aug 4, 2024

Information disclosure in Red Hat OpenShift Web Console 3.11 allows attackers to steal access tokens from browser local storage. The console persists the bearer token as LocalStorageUserStore.token, allowing scripts in the console origin to read it after login. Exploitation requires physical browser access or script execution through an XSS flaw, after which the token grants the victim's OpenShift privileges.

CVSS severity6.1
Medium
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Red Hat OpenShift Web Console 3.11 allows attackers to steal access tokens from browser local storage. The console persists the bearer token as LocalStorageUserStore.token, allowing scripts in the console origin to read it after login. Exploitation requires physical browser access or script execution through an XSS flaw, after which the token grants the victim's OpenShift privileges.

The record

CVE
CVE-2020-1761
Published
May 27, 2021
Updated
Aug 4, 2024
Vendor
Red Hat
Product
OpenShift Web Console
Classifications
CWE-358, T1528
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 27, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=openshift/console-4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Red Hat · OpenShift Web Consoleversion=openshift/console-4

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-358Improperly Implemented Security Check for Standard
T1528Steal Application Access Token

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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