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OpenAdvisories
Medium · 5.9 CVE-2026-33467 EUVD-2026-26140GHSA-r727-5pf6-47r2GO-2026-5611

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

Published Apr 28, 2026 · Updated Apr 29, 2026 · Assigned by elastic

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 products

VendorProductAffectedFixed
Elastic Elastic Package Registry 0.1.0 – ≤ 1.37.0 —

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.

ReleasePackageFixed inAdvisory
openSUSE Leap 16.0 govulncheck-vulndb 0.0.20260723T184607-160000.1.1 openSUSE-SU-2026:21483-1

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/elastic/package-registry < 1.38.0 1.38.0 GHSA-r727-5pf6-47r2

Advisories 1

References