Description
Improper Validation of Specified Index, Position, or Offset in Input (CWE-1285) in Filebeat Syslog parser and the Libbeat Dissect processor can allow a user to trigger a Buffer Overflow (CAPEC-100) and cause a denial of service (panic/crash) of the Filebeat process via either a malformed Syslog message or a malicious tokenizer pattern in the Dissect configuration.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Elastic | Filebeat | 7.0.0 – ≤ 7.17.29, 8.0.0 – ≤ 8.19.8, 9.0.0 – ≤ 9.1.8, 9.2.0 – ≤ 9.2.2 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 | openSUSE-SU-2026:21483-1 |
| openSUSE Leap 15.6 | govulncheck-vulndb | 0.0.20260123T022811-150000.1.140.1 | SUSE-SU-2026:0292-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/elastic/beats | <= 7.6.2 | — | GHSA-2mj3-6grc-px38 |
| Go | github.com/elastic/beats | all versions | — | GO-2025-4252 |
| Go | github.com/elastic/beats/v7 | >= 7.7.0, < 8.19.9 | 8.19.9 | GHSA-2mj3-6grc-px38 |
| Go | github.com/elastic/beats/v7 | >= 9.0.0, < 9.1.9 | 9.1.9 | GHSA-2mj3-6grc-px38 |
| Go | github.com/elastic/beats/v7 | >= 9.2.0, < 9.2.3 | 9.2.3 | GHSA-2mj3-6grc-px38 |
| Go | github.com/elastic/beats/v7 | < 7.0.0-alpha2.0.20251204214633-dd3af18220bf | 7.0.0-alpha2.0.20251204214633-dd3af18220bf | GHSA-2mj3-6grc-px38 |
| Go | github.com/elastic/beats/v7 | < 7.0.0-alpha2.0.20251204214633-dd3af18220bf · >= 7.7.0 | 7.0.0-alpha2.0.20251204214633-dd3af18220bf | GO-2025-4252 |
Advisories 2
- openSUSE-SU-2026:21483-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Jul 31, 2026
- SUSE-SU-2026:0292-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Mar 23, 2026