An error was found in the X-Pack Security 5.3.0 to 5.5.2 privilege enforcement.

published 2017-09-28 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-17397

cvss: 6.5; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits: 0; none known

An error was found in the X-Pack Security 5.3.0 to 5.5.2 privilege enforcement. If a user has either 'delete' or 'index' permissions on an index in a cluster, they may be able to issue both delete and index requests against that index.

Exploit prediction

0.61% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.0	6.5	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
NVD	2.0	5.5	AV:N/AC:L/Au:S/C:N/I:P/A:P

Affected products

Elastic Elastic X-Pack Security

Classification

Weakness

CWE-284 Improper Access Control
CWE-269 Improper Privilege Management

References

discuss.elastic.co /t/x-pack-security-5-6-0-and-5-5-3-security-update/100089
mitigation, vendor-advisory

Sources

CVE List CVE-2017-8447
NVD CVE-2017-8447

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary