# CVE-2026-33467: Improper Verification of Cryptographic Signature in Elastic Package Registry Leading to Package Integrity Bypass

> CVE-2026-33467: Improper Verification of Cryptographic Signature in Elastic Package Registry Leading to Package Integrity Bypass. CVSS 5.9 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-33467
Last updated: 2026-07-24T23:10:00Z

- Published: 2026-04-28 21:15 UTC · Updated: 2026-07-24 23:10 UTC · Assigner: elastic
- CVSS: 5.9 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS: 0.14%, 3th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-347

## Description

Improper Verification of Cryptographic Signature (CWE-347) in Elastic Package Registry could allow an attacker positioned to intercept network traffic, or to otherwise influence the contents served to a self-hosted registry, to substitute a tampered package without the integrity check failing closed.

## Affected vendors and products

- Elastic: Elastic Package Registry

## Tracked companies

- [Elastic Cloud](https://rewindex.com/company/elastic-cloud.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-33467)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-33467)
- [https://discuss.elastic.co/t/elastic-package-registry-1-38-0-security-update-esa-2026-27/386081](https://discuss.elastic.co/t/elastic-package-registry-1-38-0-security-update-esa-2026-27/386081)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-33467 · Markdown: https://rewindex.com/cve/CVE-2026-33467.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-33467 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:13:43.929Z