CVE-2026-33466
- Source
- https://cve.org/CVERecord?id=CVE-2026-33466
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33466.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-33466
- Aliases
- Published
- 2026-04-08T16:50:42.186Z
- Modified
- 2026-07-08T07:32:33.858483420Z
- Severity
-
- 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- Improper Limitation of a Pathname to a Restricted Directory in Logstash Leading to Arbitrary File Write
- Details
-
Improper Limitation of a Pathname to a Restricted Directory (CWE-22) in Logstash can lead to arbitrary file write and potentially remote code execution via Relative Path Traversal (CAPEC-139). The archive extraction utilities used by Logstash do not properly validate file paths within compressed archives. An attacker who can serve a specially crafted archive to Logstash through a compromised or attacker-controlled update endpoint can write arbitrary files to the host filesystem with the privileges of the Logstash process. In certain configurations where automatic pipeline reloading is enabled, this can be escalated to remote code execution.
- Database specific
{ "unresolved_ranges": [ { "source": "AFFECTED_FIELD", "extracted_events": [ { "introduced": "8.0.0" }, { "last_affected": "8.19.13" } ] } ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33466.json", "cna_assigner": "elastic", "cwe_ids": [ "CWE-22" ] }- References
Affected packages
Git / github.com/elastic/logstash
Affected ranges
- Type
- GIT
- Repo
- https://github.com/elastic/logstash
- Events
- Database specific
{ "source": "CPE_RANGE", "cpe": "cpe:2.3:a:elastic:logstash:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "8.0.0" }, { "fixed": "8.19.14" }, { "introduced": "9.0.0" }, { "fixed": "9.2.8" }, { "introduced": "9.3.0" }, { "fixed": "9.3.3" } ] }