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CVE-2023-34340

29
FAUCET Score

CVE-2023-34340 is a critical improper authentication vulnerability in Apache Accumulo version 2.1.0, allowing successful authentication with invalid credentials. With a CVSS score of 9.8, this network-exploitable flaw requires no user interaction and can lead to complete compromise of confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code, the vulnerability has garnered significant community discussion, indicating awareness among security researchers. Users are strongly advised to upgrade to Accumulo 2.1.1 immediately to mitigate this risk.

Impacted Technologies

VendorProductVersion(s)CPE
2.1.0CPE matchmatch criteria
cpe:2.3:a:apache:accumulo:2.1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.43%
Probability of exploitation in next 30 days
EPSS Percentile
70.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0143 is in the 57th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

mavenpatch availablevia ghsa
Product: org.apache.accumulo:accumulo-shellFixed in: 2.1.1

Vendor Advisories (1)

mavenGHSA-hp5w-w29m-vg63critical

Apache Accumulo Improper Authentication vulnerability

Jun 21, 2023

References

accumulo.apache.org / release/accumulo-2.1.1
Release Notes
lists.apache.org / thread/syy6jftvy9l6tlhn33o0rzwhh4rd0z4t
Mailing ListVendor Advisory