CVE-2026-62764
Apache Accumulo: A user can trigger a graceful shutdown of services without the relevant system permissions
Description
Improper Handling of Insufficient Privileges vulnerability in Apache Accumulo. An authenticated, but low-privileged user without system permissions may issue a remote command to gracefully shutdown system components (compaction-coordinator, compactor, gc, manager, monitor, tserver, or sserver), leading to a denial of service. This issue affects Apache Accumulo 2.1.4 and 2.1.5. Users are recommended to upgrade to version 2.1.6, which fixes the issue.
INFO
Published Date :
July 17, 2026, 9:16 a.m.
Last Modified :
Aug. 11, 2026, 11:53 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | f0158376-9dc2-43b6-827c-5f631a4d8d09 | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Upgrade to Apache Accumulo version 2.1.6.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-62764.
| URL | Resource |
|---|---|
| https://accumulo.apache.org/downloads/ | Product |
| https://accumulo.apache.org/release/accumulo-2.1.6/ | Release Notes |
| https://github.com/apache/accumulo/issues/6478 | Issue Tracking Patch |
| https://lists.apache.org/thread/qclg736k93oqn4qrpw9wxjbb3jhn6gm1 | Mailing List Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2026/07/17/6 | Mailing List Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-62764 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-62764
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-62764 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-62764 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Aug. 11, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CPE Configuration OR *cpe:2.3:a:apache:accumulo:*:*:*:*:*:*:*:* versions from (including) 2.1.4 up to (excluding) 2.1.6 Added Reference Type Apache Software Foundation: https://accumulo.apache.org/downloads/ Types: Product Added Reference Type Apache Software Foundation: https://accumulo.apache.org/release/accumulo-2.1.6/ Types: Release Notes Added Reference Type Apache Software Foundation: https://github.com/apache/accumulo/issues/6478 Types: Issue Tracking, Patch Added Reference Type Apache Software Foundation: https://lists.apache.org/thread/qclg736k93oqn4qrpw9wxjbb3jhn6gm1 Types: Mailing List, Vendor Advisory Added Reference Type CVE: http://www.openwall.com/lists/oss-security/2026/07/17/6 Types: Mailing List, Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-62764', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-17T10:07:29.103234Z'} -
New CVE Received by [email protected]
Jul. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Apache Software Foundation', 'product': 'Apache Accumulo', 'versions': [{'status': 'affected', 'version': '2.1.4', 'versionType': 'semver', 'lessThanOrEqual': '2.1.5'}], 'packageName': 'org.apache.accumulo:accumulo-server-base', 'collectionURL': 'https://repo.maven.apache.org/maven2', 'defaultStatus': 'unaffected'}] Added Description Improper Handling of Insufficient Privileges vulnerability in Apache Accumulo. An authenticated, but low-privileged user without system permissions may issue a remote command to gracefully shutdown system components (compaction-coordinator, compactor, gc, manager, monitor, tserver, or sserver), leading to a denial of service. This issue affects Apache Accumulo 2.1.4 and 2.1.5. Users are recommended to upgrade to version 2.1.6, which fixes the issue. Added CVSS V4.0 AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:U/V:D/RE:L/U:Green Added CWE CWE-274 Added Reference https://accumulo.apache.org/downloads/ Added Reference https://accumulo.apache.org/release/accumulo-2.1.6/ Added Reference https://github.com/apache/accumulo/issues/6478 Added Reference https://lists.apache.org/thread/qclg736k93oqn4qrpw9wxjbb3jhn6gm1 -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Jul. 17, 2026
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2026/07/17/6