CVE-2021-22145

Exp

A memory disclosure vulnerability was identified in Elasticsearch 7.10.0 to 7.13.3 error reporting. A user with the ability to submit arbitrary queries to Elasticsearch could submit a malformed query that would result in an error message returned containing previously used portions of a data buffer. This buffer could contain sensitive information such as Elasticsearch documents or authentication details.

Published: 2021-07-21 Last update: 2025-07-08 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-22145 is rated High Exploit Risk (77.7/100): CVSS Medium severity, with high exploitation likelihood (EPSS 67.93%, 99th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +2.23% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2021-22145

EDB-ID Source Kind Published Link
50149 exploit_db edb 2021-07-23 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2021-22145

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-01-18 65.70% 67.93% +2.23%
2 2025-12-28 64.85% 65.70% +0.84%
3 2025-12-27 — 64.85% —

Full EPSS history (62 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-22145

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 3.6 [email protected]
4.0 2.0 MEDIUM
AV:N/AC:L/Au:S/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 8.0 2.9 [email protected]

Weakness enumeration for CVE-2021-22145

GitHub Security Advisory for CVE-2021-22145

GHSA-q394-h7f5-7f44 · Severity: medium · Ecosystem: maven — Generation of Error Message Containing Sensitive Information in Elasticsearch

OS Trackers for CVE-2021-22145

vendor priority summary link
redhat high — https://access.redhat.com/security/cve/CVE-2021-22145
suse high CVE-2021-22145 severity important: SUSE including 1 source package names (elasticsearch), 6 product×package rows across 6 product lines (HPE Helion OpenStack 8, SUSE OpenStack Cloud 7, … (6 product lines)): Known Not Affected 6. https://www.suse.com/security/cve/CVE-2021-22145/
ubuntu medium CVE-2021-22145 medium priority: Ubuntu including 1 source packages (elasticsearch), 9 status rows across 9 suites (focal, jammy, mantic, noble, oracular, plucky, questing, upstream, xenial): DNE 7, needs-triage 2. https://ubuntu.com/security/CVE-2021-22145

Affected software / configurations for CVE-2021-22145

Vendor Product Version Raw CPE
elastic elasticsearch >= 7.10.0, <= 7.13.3 cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*
oracle communications_cloud_native_core_automated_test_suite 1.8.0 cpe:2.3:a:oracle:communications_cloud_native_core_automated_test_suite:1.8.0:*:*:*:*:*:*:*

References for CVE-2021-22145

cvelogic Threat Intelligence