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OpenAdvisories
Medium · 6.5 CVE-2026-48816 EUVD-2026-44502GHSA-xgjw-pm74-86q4

sigstore-js: Insufficient Verification of Data Authenticity

Published Jul 14, 2026 · Updated Jul 15, 2026 · Assigned by GitHub_M

Description

sigstore-js provides JavaScript libraries for interacting with Sigstore services. Prior to 3.1.1, @sigstore/verify derives a transparency-log timestamp from tlogEntries[].integratedTime for bundle v0.2 inclusionProof-only entries even though the inclusion proof path does not cryptographically bind integratedTime, allowing an attacker who can supply an untrusted bundle to influence certificate validity and timestampThreshold verification decisions. This issue is fixed in version 3.1.1.

Affected products

VendorProductAffectedFixed
sigstore sigstore-js < 3.1.1 —

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.

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2023 nodejs24 +4 1:24.18.0-1.amzn2023.0.1 ALAS2023-2026-1920
Amazon Linux 2023 nodejs24-npm 1:11.16.0-1.24.18.0.1.amzn2023.0.1 ALAS2023-2026-1920
Amazon Linux 2023 v8-13.6-devel 3:13.6.233.17-1.24.18.0.1.amzn2023.0.1 ALAS2023-2026-1920

Wolfi

ReleasePackageFixed inAdvisory
Wolfi rolling pulumi-language-nodejs 3.248.0-r2 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm @sigstore/verify >= 3.1.0, < 3.1.1 3.1.1 GHSA-xgjw-pm74-86q4

Advisories 1

References