CVE-2026-1622: neo4j Enterprise Edition · Sensitive Data in Logs
Affects neo4j Enterprise EditionSource CVE Database V5
Not known to be exploited · CVSS 4.8 Medium · fixed in 2026.01.3 : update neo4j Enterprise Edition when convenient.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2026.01.3, 5.26.21, 4.4.48
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/AU:N/R:U/V:D/RE:MExploitation evidence
Disclosed: evidence found.
CVE published 4 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
Upgrade Enterprise Edition and Community Edition and neo4j to 2026.01.3, 5.26.21 or 4.4.48.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| neo4jEnterprise Edition | Affected
| Fixed in
|
| neo4jCommunity Edition | Affected
| Fixed in
|
GitHubneo4jpkg:github/neo4jOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
European organizations should immediately upgrade Neo4j installations to versions 2026.01.3 or 5.26.21 or later, where this vulnerability is fixed. After upgrading, enable the new configuration setting 'db.logs.query.obfuscate_errors' to ensure error messages are also obfuscated in logs. Review and tighten permissions on local log files to restrict access strictly to authorized personnel and processes. Implement monitoring and alerting on log file access to detect unauthorized attempts. Limit the number of users who can execute queries that may generate errors and review user privileges regularly. Consider isolating Neo4j instances and logs on secure, access-controlled systems to reduce insider threat risks. Conduct audits of existing logs to identify any potential data leakage prior to patching. Finally, integrate these practices into the organization's security policy and incident response plans.
Description
CVE-2026-1622 is a medium severity vulnerability in Neo4j Enterprise and Community editions prior to versions 2026.01.3 and 5.26.21. It involves the insertion of sensitive information into query log files due to incomplete obfuscation of error messages when the 'obfuscate_literals' option is enabled. A user with legitimate access to local log files and the ability to run queries that trigger errors can infer unauthorized information from unredacted error details. The vulnerability does not require user interaction but does require local log file access and some privileges to run queries. The issue is fixed in the specified patched versions, and a new configuration option 'db.logs.