TI-2026-25863 Aliases CVE-2026-33467 GHSA-r727-5pf6-47r2

Improper Verification of Cryptographic Signature in Elastic Package Registry Leading to Package Integrity Bypass

LOW 25CWE-347Published 2026-04-28 · Updated 2026-04-29

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: Security bypass
Confidentiality · integrity · availability: None · High · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-347.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00136 3rd percentileScored 2026-11-07

Fix Fixed github.com/elastic/package-registry (Go): 1.38.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Elastic	Elastic Package Registry	0.1.0 – 1.37.0	—	No fix listed	CNA
—	github.com/elastic/package-registry (Go)	before 1.38.0	1.38.0	Patch available	GHSA-r727-5pf6-47r2

Elastic Package Registry VendorElastic Affected 0.1.0 – 1.37.0 Fixed in — No fix listed CNA
github.com/elastic/package-registry (Go) Vendor— Affected before 1.38.0 Fixed in 1.38.0 Patch available GHSA-r727-5pf6-47r2

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:elastic:elastic_package_registry::::::::	before 1.38.0	Vulnerable	Elastic

cpe:2.3:a:elastic:elastic_package_registry:*:*:*:*:*:*:*:* Versions before 1.38.0 Vulnerable ·Elastic

Remediation

Fix · GHSA-r727-5pf6-47r2 github.com/elastic/package-registry (Go) Fixed in 1.38.0 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-33467
2026-10-03 Alias added: GHSA-r727-5pf6-47r2

References

Advisory 2

Other 1

https://github.com/elastic/package-registry

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences